Shenbagam Dewar, MD
NPI 1255323747 · Geriatric Medicine (Family Medicine) Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shenbagam Dewar, MD is a Geriatric Medicine (Family Medicine) Physician provider in Ann Arbor, MI (NPI 1255323747).
Provider details
- NPI number
- 1255323747
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301108515 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
181 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 88 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $98 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $174 |
Typical Medicare-allowed amounts for these services range $74–$174 (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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 57 | 11 |
| Metformin Hcl | 51 | 16 |
| Atorvastatin Calcium | 50 | 11 |
| Amlodipine Besylate | 45 | — |
| Levothyroxine Sodium | 44 | 12 |
| Donepezil Hcl | 44 | — |
| Carvedilol | 22 |
Practice location
Mailing address
Additional practice locations (1)
- 564 Main StWaltham, MA 02452-5516Phone: (781) 693-3800
Registry dates
- Enumerated
- 2005-08-19
- Last updated
- 2023-03-20
- Certified
- 2023-03-20
Frequently asked questions
- What is Shenbagam Dewar's NPI number?
- Shenbagam Dewar's National Provider Identifier (NPI) is 1255323747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shenbagam Dewar's specialty?
- Shenbagam Dewar is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Shenbagam Dewar located?
- Shenbagam Dewar's practice location on file with NPPES is 4260 Plymouth Rd, Ann Arbor, MI 48109-2700.
- What is Shenbagam Dewar's phone number?
- The practice phone number listed in the NPPES registry for Shenbagam Dewar is (734) 764-6831.
- Does Shenbagam Dewar accept Medicare?
- Shenbagam Dewar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shenbagam Dewar's NPI active?
- Yes — Shenbagam Dewar's NPI (1255323747) is active in the NPPES registry as of the last update on 2023-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.