Malcolm Brock, M.D.
NPI 1396702635 · Surgery Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Malcolm Brock, M.D. is a Surgery Physician provider in Baltimore, MD (NPI 1396702635).
Provider details
- NPI number
- 1396702635
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D44406 (MD)
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
24 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 | 24 | $87 |
Typical Medicare-allowed amounts for these services range $87–$87 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 122 | 27 |
| Guanfacine Hclbrand: Guanfacine Hcl Er | 59 | 14 |
| Guanfacine Hcl | 27 | — |
| Dronabinol | 14 | — |
| Oxybutynin Chloride | 13 | — |
| Glycopyrrolate | 13 | — |
| Protriptyline Hcl | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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
- 2006-04-28
- Last updated
- 2014-01-30
Frequently asked questions
- What is Malcolm Brock's NPI number?
- Malcolm Brock's National Provider Identifier (NPI) is 1396702635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Malcolm Brock's specialty?
- Malcolm Brock is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Malcolm Brock located?
- Malcolm Brock's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Malcolm Brock's phone number?
- The practice phone number listed in the NPPES registry for Malcolm Brock is (410) 955-5464.
- Does Malcolm Brock accept Medicare?
- Malcolm Brock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Malcolm Brock's NPI active?
- Yes — Malcolm Brock's NPI (1396702635) is active in the NPPES registry as of the last update on 2014-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.