IndividualActive
Zana Marks, MD
NPI 1992926976 · Gastroenterology Physician · Washington, DC
Zana Marks, MD is a Gastroenterology Physician provider in Washington, DC (NPI 1992926976).
Provider details
- NPI number
- 1992926976
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 20026 (DC)
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
1310 Southern Ave Se
Washington, DC 20032-4623
Phone: (301) 574-6655
Street-level locationGet directions
Mailing address
9255 Three Oaks Dr
Silver Spring, MD 20901-3366
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Zana Marks's NPI number?
- Zana Marks's National Provider Identifier (NPI) is 1992926976, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zana Marks's specialty?
- Zana Marks is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Zana Marks located?
- Zana Marks's practice location on file with NPPES is 1310 Southern Ave Se, Washington, DC 20032-4623.
- What is Zana Marks's phone number?
- The practice phone number listed in the NPPES registry for Zana Marks is (301) 574-6655.
- Is Zana Marks's NPI active?
- Yes — Zana Marks's NPI (1992926976) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.