Nancy Markus, M.D.
NPI 1972509875 · Surgical Oncology Physician · Rockville, MD
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Markus, M.D. is a Surgical Oncology Physician provider in Rockville, MD (NPI 1972509875).
Provider details
- NPI number
- 1972509875
- Entity type
- Individual
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0046514 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2005-06-24
- Last updated
- 2015-01-27
Frequently asked questions
- What is Nancy Markus's NPI number?
- Nancy Markus's National Provider Identifier (NPI) is 1972509875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Markus's specialty?
- Nancy Markus is listed in the NPPES registry with a primary specialty of Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Markus located?
- Nancy Markus's practice location on file with NPPES is 9711 Medical Center Dr, Rockville, MD 20850-3381.
- What is Nancy Markus's phone number?
- The practice phone number listed in the NPPES registry for Nancy Markus is (301) 251-7797.
- Does Nancy Markus accept Medicare?
- Nancy Markus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Markus's NPI active?
- Yes — Nancy Markus's NPI (1972509875) is active in the NPPES registry as of the last update on 2015-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.