William Griesser, PA-C
NPI 1699071415 · Physician Assistant · Washington, DC
William Griesser, PA-C is a Physician Assistant provider in Washington, DC (NPI 1699071415).
Provider details
- NPI number
- 1699071415
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-01-27
- Last updated
- 2025-09-08
- Certified
- 2025-09-08
Frequently asked questions
- What is William Griesser's NPI number?
- William Griesser's National Provider Identifier (NPI) is 1699071415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Griesser's specialty?
- William Griesser is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Griesser located?
- William Griesser's practice location on file with NPPES is 1600 Pennsylvania Ave, Washington, DC 20500.
- What is William Griesser's phone number?
- The practice phone number listed in the NPPES registry for William Griesser is (202) 757-2499.
- Is William Griesser's NPI active?
- Yes — William Griesser's NPI (1699071415) is active in the NPPES registry as of the last update on 2025-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.