Note: Billing relationships are defined as an instance of an EP billing under a given TIN. Each EP can have multiple billing relationships, as can each TIN.

Table 3. EP Specialty Composition of Each Cost Range for TINs with 1+ EPs and 20+ Beneficiaries - Specialty Weight by Percent of TIN Charges

LowMedium Medical oncology 94% 3,709 0.2% 55.2% Hematology/oncology 90% 10,156 0.4% 63.7% Radiation oncology 56% 3,666 1.8% 71.5% Gynecologist/oncologist 76% 1,038 1.7% 75.5% Hematology 92% 1,100 0.4% 77.5% Geriatric medicine 93% 2,593 0.4% 79.1% Surgical oncology 81% 832 0.8% 79.4% Geriatric Psychiatry 44% 57 0.0% 82.5% Neurosurgery 67% 3,729 0.9% 83.3% Unknown physician specialty 54% 167 0.6% 83.8% Pain Management 56% 1,011 1.1% 85.5% Certified clinical nurse specialist 43% 1,275 2.5% 84.9% Hospice and Palliative Care 81% 323 0.3% 87.6% Internal medicine 83% 111,2211.0% 87.3% Nurse practitioner 71% 51,908 5.3% 83.6% Physical medicine and rehabilitation57% 5,590 1.4% 87.9% Single or Multispecialty clinic or group practice 36% 3,142 6.8% 83.3% Clinical psychologist (billing indepedently)4% 31 9.7% 80.6% Licensed clinical social worker 13% 4,724 7.4% 83.4% General practice 64% 8,279 4.7% 86.2% Interventional Pain Management58% 1,893 2.1% 89.1% General surgery 63% 17,133 1.3% 90.1% Physician assistant 70% 42,071 3.9% 87.9% Clinical psychologist 15% 4,583 3.2% 88.7% Thoracic surgery 62% 1,889 0.1% 91.9% Certified Registered Nurse Anesthetists (CRNA) 31% 16,191 1.0% 91.1% Osteopathic manipulative therapy57% 457 3.9% 88.2% Chiropractic 2% 843 2.6% 89.6% Nuclear medicine 46% 494 2.2% 90.1% Colorectal surgery 59% 953 2.9% 89.4% Diagnostic radiology 29% 15,926 0.6% 92.0% Emergency medicine 37% 23,335 3.4% 89.3% Podiatry 16% 3,303 1.9% 91.0% Infectious disease 70% 4,747 2.1% 90.9% Cardiac surgery 59% 1,527 0.5% 92.6% Family practice 85% 93,888 1.1% 92.2% Neuropsychiatry 36% 75 4.0% 89.3% Peripheral vascular disease 69% 90 0.0% 93.3% Pathology 39% 6,033 3.1% 90.3%

Specialty Total Billing Relationships Captured Cost Range Composition for EPs of each Specialty Original per Capita Cost Analysis (rows sum to 100%) Percent Billing Relationships CapturedVascular surgery 68% 2,999 0.5% 92.8%

Interventional radiology 37% 820 0.9% 92.7% Critical care (intensivists) 75% 2,887 1.6% 92.1% Psychiatry 35% 13,202 4.8% 89.4% Speech-language pathologist 28% 364 6.3% 87.9% Plastic and Reconstructive surgery32% 1,979 5.2% 89.1% Oral surgery (dentists only) 14% 456 0.9% 93.4% Orthopedic surgery 76% 21,086 2.4% 92.2% Anesthesiology 30% 14,039 1.5% 93.5% Preventive medicine 76% 532 2.6% 92.5% Anesthesiologist Assistant 29% 372 0.0% 95.4% Pulmonary disease 78% 10,840 2.8% 92.7% Registered Dietician/Nutrition Professional 63% 2,080 2.9% 92.9% Physical therapist 16% 7,468 2.1% 93.7% Certified nurse midwife 72% 1,953 1.9% 94.2% Obstetrics/gynecology 54% 21,006 7.7% 88.7% Maxillofacial surgery 12% 226 0.9% 95.6% Pediatric medicine 73% 8,540 1.1% 95.6% Occupational therapist 28% 1,623 2.5% 94.1% Cardiology 77% 34,291 4.0% 92.7% Urology 82% 10,250 4.9% 92.3% Sports Medicine 96% 305 0.0% 97.4% Neurology 74% 13,147 4.8% 92.5% Rheumatology 85% 4,771 3.7% 93.9% Addiction medicine 48% 85 4.7% 92.9% Mass Immunization Roster Biller 0% 153 2.0% 96.1% Cardiac Electrophysiology 85% 1,229 1.5% 96.5% Gastroenterology 75% 12,363 4.1% 93.9% Nephrology 82% 8,983 14.5%83.6% Endocrinology 88% 5,987 9.8% 88.6% Otolaryngology 73% 8,238 18.6%79.8% Allergy/immunology 48% 2,078 8.3% 90.3% Hand surgery 76% 1,290 2.0% 96.7% Optometry 13% 4,771 21.1%78.0% Audiologist 48% 3,636 19.1%80.0% Dermatology 74% 9,866 49.5%49.7% Ophthalmology 53% 12,93324.3%75.0%

Total 696,830

*Note: red indicates that a specialty has a high proportion of its billing relationships in high cost TINs. Blue indicates that a specialty has a low proportion of its billing relationships in high cost TINs.Note: Billing relationships are defined as an instance of an EP billing under a given TIN. Each EP can have multiple billing relationships, as can each TIN.

Table 3. EP Specialty Composition of Each Cost Range for TINs with 1+ EPs and 20+ Beneficiaries - Specialty Weight by Percent of TIN Charges

High Total LowMediumHigh Total 44.6%100.0%0.3% 73.4% 26.4%100.0% 35.9%100.0%0.8% 80.4% 18.8%100.0% 26.7%100.0% 2.5% 80.9% 16.6%100.0% 22.7%100.0% 1.7% 83.1% 15.2%100.0% 22.1%100.0%0.6% 84.1% 15.3%100.0% 20.5%100.0% 1.3% 83.6% 15.1%100.0% 19.7%100.0% 1.4% 81.5% 17.0%100.0% 17.5%100.0%0.0% 82.5% 17.5%100.0% 15.8%100.0% 1.5% 85.0% 13.6%100.0% 15.6%100.0%0.6% 83.2% 16.2%100.0% 13.5%100.0% 1.6% 85.9% 12.6%100.0% 12.5%100.0% 2.8% 86.2% 11.0%100.0% 12.1%100.0%0.3% 89.2% 10.5%100.0% 11.7%100.0% 1.6% 87.1% 11.3%100.0% 11.1%100.0%5.5% 84.1% 10.4%100.0% 10.7%100.0% 2.5% 87.5% 9.9% 100.0% 9.8% 100.0%5.6% 85.0% 9.4% 100.0% 9.7% 100.0%12.5%78.1% 9.4% 100.0% 9.2% 100.0%9.1% 82.7% 8.2% 100.0% 9.2% 100.0% 6.4% 83.9% 9.7% 100.0% 8.8% 100.0%3.1% 89.1% 7.8% 100.0% 8.6% 100.0% 1.7% 89.4% 8.9% 100.0% 8.3% 100.0%3.1% 88.9% 8.0% 100.0% 8.1% 100.0%3.9% 87.9% 8.3% 100.0% 8.0% 100.0%0.2% 92.0% 7.8% 100.0% 7.9% 100.0% 1.0% 91.0% 8.0% 100.0% 7.9% 100.0%5.3% 85.3% 9.4% 100.0% 7.8% 100.0% 2.8% 89.4% 7.7% 100.0% 7.7% 100.0% 2.2% 90.3% 7.5% 100.0% 7.7% 100.0%3.8% 88.3% 7.9% 100.0% 7.4% 100.0%0.8% 92.0% 7.2% 100.0% 7.3% 100.0%4.2% 88.2% 7.6% 100.0% 7.1% 100.0% 2.3% 91.0% 6.7% 100.0% 7.0% 100.0% 2.5% 90.3% 7.2% 100.0% 6.9% 100.0%0.5% 92.5% 7.0% 100.0% 6.7% 100.0% 1.6% 91.6% 6.8% 100.0% 6.7% 100.0%4.0% 90.7% 5.3% 100.0% 6.7% 100.0%0.0% 94.4% 5.6% 100.0% 6.6% 100.0% 2.1% 91.2% 6.7% 100.0% Cost Range Composition for EPs of each Specialty Specialty-Adjusted per Capita Cost Analysis

(rows sum to 100%) Cost Range Composition for EPs of each Specialty Original per Capita Cost Analysis (rows sum to 100%)6.6% 100.0%0.5% 92.8% 6.7% 100.0%

6.5% 100.0%0.7% 92.9% 6.3% 100.0% 6.2% 100.0% 1.7% 91.7% 6.6% 100.0% 5.9% 100.0%5.9% 88.4% 5.7% 100.0% 5.8% 100.0%5.1% 87.3% 7.6% 100.0% 5.7% 100.0%3.4% 90.8% 5.8% 100.0% 5.7% 100.0% 1.5% 92.4% 6.1% 100.0% 5.4% 100.0%3.5% 91.0% 5.5% 100.0% 5.0% 100.0% 2.1% 92.7% 5.2% 100.0% 4.9% 100.0%3.2% 91.5% 5.3% 100.0% 4.6% 100.0%12.3%87.5% 0.2% 100.0% 4.6% 100.0%3.0% 91.7% 5.3% 100.0% 4.2% 100.0% 2.2% 93.9% 4.0% 100.0% 4.2% 100.0%3.1% 92.6% 4.2% 100.0% 3.9% 100.0% 1.9% 93.8% 4.2% 100.0% 3.6% 100.0%7.8% 88.3% 3.9% 100.0% 3.5% 100.0%0.9% 94.7% 4.4% 100.0% 3.4% 100.0% 1.2% 92.2% 6.5% 100.0% 3.4% 100.0%3.6% 93.0% 3.4% 100.0% 3.2% 100.0%3.7% 92.3% 4.0% 100.0% 2.8% 100.0%4.3% 92.8% 2.9% 100.0% 2.6% 100.0% 2.6% 94.8% 2.6% 100.0% 2.6% 100.0%4.7% 92.4% 2.9% 100.0% 2.5% 100.0%3.7% 93.5% 2.8% 100.0% 2.4% 100.0%4.7% 94.1% 1.2% 100.0% 2.0% 100.0% 2.6% 95.4% 2.0% 100.0% 2.0% 100.0% 1.1% 96.5% 2.4% 100.0% 1.9% 100.0%4.2% 93.1% 2.7% 100.0% 1.9% 100.0%10.1%87.2% 2.7% 100.0% 1.6% 100.0%7.4% 90.7% 1.9% 100.0% 1.6% 100.0%13.2%84.1% 2.7% 100.0% 1.3% 100.0%5.3% 92.3% 2.3% 100.0% 1.2% 100.0%3.3% 95.4% 1.3% 100.0% 0.9% 100.0%11.2%85.3% 3.5% 100.0% 0.9% 100.0%12.9%85.0% 2.1% 100.0% 0.8% 100.0%20.6%77.3% 2.2% 100.0% 0.7% 100.0%12.1%84.0% 3.8% 100.0%

*Note: red indicates that a specialty has a high proportion of its billing relationships in high cost TINs. Blue indicates that a specialty has a low proportion of its billing relationships in high cost TINs.Low Medium High Low Medium High

0.0% 0.3% 3.0% 0.0% 0.4% 1.9% 0.1% 1.1% 6.7% 0.3% 1.3% 3.6% 0.2% 0.4% 1.8% 0.4% 0.5% 1.2% 0.1% 0.1% 0.4% 0.1% 0.1% 0.3% 0.0% 0.1% 0.4% 0.0% 0.1% 0.3% 0.0% 0.3% 1.0% 0.1% 0.4% 0.7% 0.0% 0.1% 0.3% 0.0% 0.1% 0.3% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.1% 0.5% 1.1% 0.2% 0.5% 1.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.1% 0.0% 0.1% 0.2% 0.1% 0.1% 0.2% 0.1% 0.2% 0.3% 0.1% 0.2% 0.3% 0.0% 0.0% 0.1% 0.0% 0.0% 0.1% 3.7% 15.9% 23.7% 6.8% 15.7% 23.8% 9.1% 7.1% 10.5% 11.0% 7.1% 10.3% 0.3% 0.8% 1.1% 0.5% 0.8% 1.1% 0.7% 0.4% 0.6% 0.7% 0.4% 0.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 1.2% 0.6% 0.8% 1.7% 0.6% 0.7% 1.3% 1.2% 1.4% 2.0% 1.1% 1.5% 0.1% 0.3% 0.3% 0.2% 0.3% 0.3% 0.7% 2.5% 2.7% 1.1% 2.5% 2.9% 5.4% 6.0% 6.3% 5.0% 6.0% 6.4% 0.5% 0.7% 0.7% 0.7% 0.7% 0.7% 0.0% 0.3% 0.3% 0.0% 0.3% 0.3% 0.5% 2.4% 2.3% 0.6% 2.4% 2.5% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.0% 0.1% 0.1% 0.0% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.3% 2.4% 2.1% 0.5% 2.4% 2.2% 2.6% 3.4% 3.1% 3.7% 3.3% 3.4% 0.2% 0.5% 0.4% 0.3% 0.5% 0.4% 0.3% 0.7% 0.6% 0.5% 0.7% 0.7% 0.0% 0.2% 0.2% 0.0% 0.2% 0.2% 3.5% 14.1% 11.5% 5.8% 13.9% 12.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.6% 0.9% 0.7% 0.5% 0.9% 0.8% Specialty Composition of Each Cost Range of TINs Original per Capita Cost Analysis (columns sum to 100%) Specialty Composition of Each Cost Range of TINs Specialty-Adjusted per Capita Cost Analysis (columns sum to 100%)0.1% 0.5% 0.4% 0.1% 0.5% 0.4%

0.0% 0.1% 0.1% 0.0% 0.1% 0.1% 0.2% 0.4% 0.3% 0.2% 0.4% 0.4% 2.1% 1.9% 1.4% 3.0% 1.9% 1.4% 0.1% 0.1% 0.0% 0.1% 0.1% 0.1% 0.3% 0.3% 0.2% 0.3% 0.3% 0.2% 0.0% 0.1% 0.0% 0.0% 0.1% 0.1% 1.7% 3.2% 2.1% 2.9% 3.1% 2.2% 0.7% 2.1% 1.3% 1.1% 2.1% 1.4% 0.0% 0.1% 0.0% 0.1% 0.1% 0.1% 0.0% 0.1% 0.0% 0.2% 0.1% 0.0% 1.0% 1.6% 0.9% 1.2% 1.6% 1.1% 0.2% 0.3% 0.2% 0.2% 0.3% 0.2% 0.5% 1.1% 0.6% 0.9% 1.1% 0.6% 0.1% 0.3% 0.1% 0.1% 0.3% 0.2% 5.4% 3.0% 1.4% 6.3% 3.0% 1.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.3% 1.3% 0.5% 0.4% 1.3% 1.1% 0.1% 0.2% 0.1% 0.2% 0.2% 0.1% 4.6% 5.2% 2.0% 4.9% 5.1% 2.6% 1.7% 1.5% 0.5% 1.7% 1.5% 0.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 2.1% 2.0% 0.6% 2.4% 2.0% 0.7% 0.6% 0.7% 0.2% 0.7% 0.7% 0.3% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.1% 0.2% 0.0% 0.0% 0.2% 0.1% 1.7% 1.9% 0.4% 2.0% 1.9% 0.6% 4.3% 1.2% 0.3% 3.5% 1.3% 0.5% 1.9% 0.9% 0.2% 1.7% 0.9% 0.2% 5.1% 1.1% 0.2% 4.2% 1.1% 0.4% 0.6% 0.3% 0.1% 0.4% 0.3% 0.1% 0.1% 0.2% 0.0% 0.2% 0.2% 0.0% 3.3% 0.6% 0.1% 2.0% 0.7% 0.3% 2.3% 0.5% 0.1% 1.8% 0.5% 0.1% 16.2% 0.8% 0.1% 7.8% 1.2% 0.4% 10.4% 1.6% 0.2% 6.0% 1.8% 0.9%

100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

*Note: red indicates that a specialty has a high proportion of its billing relationships in high cost TINs. Blue indicates that a specialty has a low proportion of its billing relationships in high cost TINs.