William R Frederick MD PC
NPI 1841471588 · Internal Medicine Physician · Washington, DC
William R Frederick MD PC is a Internal Medicine Physician organization in Washington, DC (NPI 1841471588).
Provider details
- NPI number
- 1841471588
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Frederick, Owner(202) 291-6423
- License
- 0101051734 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-11-23
- Last updated
- 2009-06-02
Frequently asked questions
- What is William R Frederick MD PC's NPI number?
- William R Frederick MD PC's National Provider Identifier (NPI) is 1841471588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William R Frederick MD PC?
- William R Frederick MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William R Frederick MD PC located?
- William R Frederick MD PC's practice location on file with NPPES is 106 Irving St Nw, Washington, DC 20010-2927.
- What is William R Frederick MD PC's phone number?
- The practice phone number listed in the NPPES registry for William R Frederick MD PC is (202) 291-6423.
- Who is the authorized official for William R Frederick MD PC?
- The authorized official listed on William R Frederick MD PC's NPPES record is William Frederick, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William R Frederick MD PC's NPI active?
- Yes — William R Frederick MD PC's NPI (1841471588) is active in the NPPES registry as of the last update on 2009-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.