Charles Brum, M.D., PH.D.
NPI 1790811537 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Brum, M.D., PH.D. is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1790811537).
Provider details
- NPI number
- 1790811537
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 220730 (NY)
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
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
983 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 749 | $71 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 81 | $141 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 79 | $145 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 44 | $103 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 30 | $84 |
Typical Medicare-allowed amounts for these services range $71–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 171 | 31 |
| Apixabanbrand: Eliquis | 131 | 19 |
| Levothyroxine Sodium | 112 | 16 |
| Memantine Hcl | 77 | 13 |
| Losartan Potassium | 74 | — |
| Mupirocin | 71 | 25 |
| Metoprolol Succinate | 70 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-26
- Last updated
- 2011-06-03
Frequently asked questions
- What is Charles Brum's NPI number?
- Charles Brum's National Provider Identifier (NPI) is 1790811537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Brum's specialty?
- Charles Brum is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Brum located?
- Charles Brum's practice location on file with NPPES is 1780 E 34th St, Brooklyn, NY 11234-4428.
- What is Charles Brum's phone number?
- The practice phone number listed in the NPPES registry for Charles Brum is (718) 336-2871.
- Does Charles Brum accept Medicare?
- Charles Brum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Brum's NPI active?
- Yes — Charles Brum's NPI (1790811537) is active in the NPPES registry as of the last update on 2011-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.