IndividualActive
Hilary Marston, M.D.
NPI 1598992273 · Internal Medicine Physician · Bethesda, MD
Hilary Marston, M.D. is a Internal Medicine Physician provider in Bethesda, MD (NPI 1598992273).
Provider details
- NPI number
- 1598992273
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D77283 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
Room 7ao5c Bldg 31
31 Center Drive, National Institutes of Health
Bethesda, MD 20892-0001
Phone: (301) 451-2435
Approximate (ZIP-level) locationGet directions
Mailing address
Room 7ao5c Bldg 31
Bethesda, MD 20892-0001
Registry dates
- Enumerated
- 2009-06-19
- Last updated
- 2014-06-24
Frequently asked questions
- What is Hilary Marston's NPI number?
- Hilary Marston's National Provider Identifier (NPI) is 1598992273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hilary Marston's specialty?
- Hilary Marston is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hilary Marston located?
- Hilary Marston's practice location on file with NPPES is Room 7ao5c Bldg 31, Bethesda, MD 20892-0001.
- What is Hilary Marston's phone number?
- The practice phone number listed in the NPPES registry for Hilary Marston is (301) 451-2435.
- Is Hilary Marston's NPI active?
- Yes — Hilary Marston's NPI (1598992273) is active in the NPPES registry as of the last update on 2014-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.