Benjamin Margolis, MD
NPI 1013099928 · Nephrology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Margolis, MD is a Nephrology Physician provider in Ann Arbor, MI (NPI 1013099928).
Provider details
- NPI number
- 1013099928
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301065167 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
202 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 141 | $92 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 23 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $93 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 18 | $128 |
Typical Medicare-allowed amounts for these services range $16–$128 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 56 | 18 |
| Losartan Potassium | 50 | 15 |
| Amlodipine Besylate | 50 | 22 |
| Empagliflozinbrand: Jardiance | 40 | — |
| Prednisone | 39 | — |
| Potassium Chloride | 31 | — |
| Nifedipinebrand: Nifedipine Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2019-05-29
Frequently asked questions
- What is Benjamin Margolis's NPI number?
- Benjamin Margolis's National Provider Identifier (NPI) is 1013099928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Margolis's specialty?
- Benjamin Margolis is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Margolis located?
- Benjamin Margolis's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Benjamin Margolis's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Margolis is (734) 936-4000.
- Does Benjamin Margolis accept Medicare?
- Benjamin Margolis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Margolis's NPI active?
- Yes — Benjamin Margolis's NPI (1013099928) is active in the NPPES registry as of the last update on 2019-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.