OrganizationActive
Anne C. Mazonson, Md,llc
NPI 1427229434 · Psychiatry Physician · Bethesda, MD
Anne C. Mazonson, Md,llc is a Psychiatry Physician organization in Bethesda, MD (NPI 1427229434).
Provider details
- NPI number
- 1427229434
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anne Mazonson, Owner(301) 657-5655
- License
- D41821 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
4807 Saint Elmo Ave
Suite 200
Bethesda, MD 20814-7044
Phone: (301) 657-5655
Fax: (301) 657-2814
Street-level locationGet directions
Mailing address
4807 Saint Elmo Ave
Bethesda, MD 20814-7044
Registry dates
- Enumerated
- 2008-03-18
- Last updated
- 2008-03-18
Frequently asked questions
- What is Anne C. Mazonson, Md,llc's NPI number?
- Anne C. Mazonson, Md,llc's National Provider Identifier (NPI) is 1427229434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Anne C. Mazonson, Md,llc?
- Anne C. Mazonson, Md,llc is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Anne C. Mazonson, Md,llc located?
- Anne C. Mazonson, Md,llc's practice location on file with NPPES is 4807 Saint Elmo Ave, Bethesda, MD 20814-7044.
- What is Anne C. Mazonson, Md,llc's phone number?
- The practice phone number listed in the NPPES registry for Anne C. Mazonson, Md,llc is (301) 657-5655.
- Who is the authorized official for Anne C. Mazonson, Md,llc?
- The authorized official listed on Anne C. Mazonson, Md,llc's NPPES record is Anne Mazonson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Anne C. Mazonson, Md,llc's NPI active?
- Yes — Anne C. Mazonson, Md,llc's NPI (1427229434) is active in the NPPES registry as of the last update on 2008-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.