Isaac Kaufman, M.D.
NPI 1821230921 · Radiation Oncology Physician · Traverse City, MI
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Kaufman, M.D. is a Radiation Oncology Physician provider in Traverse City, MI (NPI 1821230921).
Provider details
- NPI number
- 1821230921
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,484 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 1,200 | $42 |
| Calculation of Radiation Therapy Dose77300 | 254 | $31 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 250 | $181 |
| Design and Construction of Complex Radiation Treatment Device77334 | 210 | $57 |
| Complex Radiation Therapy Planning77263 | 96 | $160 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 93 | $61 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 43 | 15 |
| Methylprednisolone | 12 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-03
- Last updated
- 2014-06-25
Frequently asked questions
- What is Isaac Kaufman's NPI number?
- Isaac Kaufman's National Provider Identifier (NPI) is 1821230921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Kaufman's specialty?
- Isaac Kaufman is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Kaufman located?
- Isaac Kaufman's practice location on file with NPPES is 1105 6th Street, Traverse City, MI 49684-2345.
- What is Isaac Kaufman's phone number?
- The practice phone number listed in the NPPES registry for Isaac Kaufman is (231) 935-5000.
- Does Isaac Kaufman accept Medicare?
- Isaac Kaufman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Kaufman's NPI active?
- Yes — Isaac Kaufman's NPI (1821230921) is active in the NPPES registry as of the last update on 2014-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.