OrganizationActive
Marc Hertzman, M.D., P.C.
NPI 1477821320 · Neurology Physician · Rockville, MD
Marc Hertzman, M.D., P.C. is a Neurology Physician organization in Rockville, MD (NPI 1477821320).
Provider details
- NPI number
- 1477821320
- Entity type
- Organization
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Marc Hertzman, Dr.(301) 984-8800
- License
- DOO16115 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
11404 Old Georgetown Rd
Suite 203
Rockville, MD 20852-2865
Phone: (301) 984-8800
Fax: (301) 984-8802
Street-level locationGet directions
Mailing address
11404 Old Georgetown Rd
Rockville, MD 20852-2865
Registry dates
- Enumerated
- 2011-12-07
- Last updated
- 2011-12-07
Frequently asked questions
- What is Marc Hertzman, M.D., P.C.'s NPI number?
- Marc Hertzman, M.D., P.C.'s National Provider Identifier (NPI) is 1477821320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marc Hertzman, M.D., P.C.?
- Marc Hertzman, M.D., P.C. is classified in the NPPES registry as Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Hertzman, M.D., P.C. located?
- Marc Hertzman, M.D., P.C.'s practice location on file with NPPES is 11404 Old Georgetown Rd, Rockville, MD 20852-2865.
- What is Marc Hertzman, M.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Marc Hertzman, M.D., P.C. is (301) 984-8800.
- Who is the authorized official for Marc Hertzman, M.D., P.C.?
- The authorized official listed on Marc Hertzman, M.D., P.C.'s NPPES record is Marc Hertzman, Dr.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marc Hertzman, M.D., P.C.'s NPI active?
- Yes — Marc Hertzman, M.D., P.C.'s NPI (1477821320) is active in the NPPES registry as of the last update on 2011-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.