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William Gradwell, PH.D.
NPI 1891758058 · Clinical Psychologist · Bethesda, MD
William Gradwell, PH.D. is a Clinical Psychologist provider in Bethesda, MD (NPI 1891758058).
Provider details
- NPI number
- 1891758058
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- License
- 1013 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
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
National Naval Medical Center
8901 Wisconsin Ave
Bethesda, MD 20889-0001
Phone: (301) 319-8193
Fax: (301) 295-2070
Approximate (ZIP-level) locationGet directions
Mailing address
14013 Broomall Ln
Silver Spring, MD 20906-3055
Registry dates
- Enumerated
- 2006-04-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Gradwell's NPI number?
- William Gradwell's National Provider Identifier (NPI) is 1891758058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gradwell's specialty?
- William Gradwell is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Gradwell located?
- William Gradwell's practice location on file with NPPES is National Naval Medical Center, Bethesda, MD 20889-0001.
- What is William Gradwell's phone number?
- The practice phone number listed in the NPPES registry for William Gradwell is (301) 319-8193.
- Is William Gradwell's NPI active?
- Yes — William Gradwell's NPI (1891758058) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.