Brian Shen, MD
NPI 1538232723 · Internal Medicine Physician · Gaithersburg, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Shen, MD is a Internal Medicine Physician provider in Gaithersburg, MD (NPI 1538232723).
Provider details
- NPI number
- 1538232723
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD22160 (DC)
Specialties & taxonomies
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,441 | 444 |
| Amlodipine Besylate | 645 | 195 |
| Lisinopril | 487 | 154 |
| Metformin Hcl | 406 | 128 |
| Losartan Potassium | 392 | 122 |
| Levothyroxine Sodium | 356 | 101 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-16
- Last updated
- 2021-12-03
- Certified
- 2021-12-03
Frequently asked questions
- What is Brian Shen's NPI number?
- Brian Shen's National Provider Identifier (NPI) is 1538232723, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Shen's specialty?
- Brian Shen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Shen located?
- Brian Shen's practice location on file with NPPES is 501 N Frederick Ave, Gaithersburg, MD 20877-2598.
- What is Brian Shen's phone number?
- The practice phone number listed in the NPPES registry for Brian Shen is (301) 258-7245.
- Does Brian Shen accept Medicare?
- Brian Shen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Shen's NPI active?
- Yes — Brian Shen's NPI (1538232723) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.