Brian Ash, M.D.
NPI 1033180385 · Internal Medicine Physician · Brighton, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Ash, M.D. is a Internal Medicine Physician provider in Brighton, MA (NPI 1033180385).
Provider details
- NPI number
- 1033180385
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 221467 (MA)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
40 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $106 |
Typical Medicare-allowed amounts for these services range $72–$106 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 53 | 25 |
| Lisinopril | 41 | 17 |
| Rosuvastatin Calcium | 31 | 14 |
| Lorazepam | 19 | — |
| Omeprazole | 19 | — |
| Amlodipine Besylate | 18 | 11 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-26
- Last updated
- 2016-02-03
Frequently asked questions
- What is Brian Ash's NPI number?
- Brian Ash's National Provider Identifier (NPI) is 1033180385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Ash's specialty?
- Brian Ash is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Ash located?
- Brian Ash's practice location on file with NPPES is 736 Cambridge St, Brighton, MA 02135-2907.
- What is Brian Ash's phone number?
- The practice phone number listed in the NPPES registry for Brian Ash is (617) 782-5316.
- Does Brian Ash accept Medicare?
- Brian Ash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Ash's NPI active?
- Yes — Brian Ash's NPI (1033180385) is active in the NPPES registry as of the last update on 2016-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.