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James Markwell, M.D.
NPI 1629172309 · Otolaryngology Physician · Bethesda, MD
James Markwell, M.D. is a Otolaryngology Physician provider in Bethesda, MD (NPI 1629172309).
Provider details
- NPI number
- 1629172309
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101039565 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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.
Practice location
National Naval Med Ctr 8901 Wisconsin Ave
Otolaryngology Department
Bethesda, MD 20889-0001
Phone: (301) 295-4670
Fax: (301) 295-6666
Approximate (ZIP-level) locationGet directions
Mailing address
10225 Frederick Ave
Kensington, MD 20895-3308
Registry dates
- Enumerated
- 2006-09-12
- Last updated
- 2021-11-22
- Certified
- 2021-11-22
Frequently asked questions
- What is James Markwell's NPI number?
- James Markwell's National Provider Identifier (NPI) is 1629172309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Markwell's specialty?
- James Markwell is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is James Markwell located?
- James Markwell's practice location on file with NPPES is National Naval Med Ctr 8901 Wisconsin Ave, Bethesda, MD 20889-0001.
- What is James Markwell's phone number?
- The practice phone number listed in the NPPES registry for James Markwell is (301) 295-4670.
- Is James Markwell's NPI active?
- Yes — James Markwell's NPI (1629172309) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.