William Allan Gradwell, PH.D.
Clinical Psychologist · Bethesda, MD
William Allan Gradwell, PH.D. is a clinical psychologist with a practice address in Bethesda, Maryland, and NPI 1891758058, issued on Apr 10, 2006. Check the license with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Allan Gradwell
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 1013 NJ
Self-reported in NPPES; status is on the state search - Practice location
- National Naval Medical Center, Bethesda, MD 20889
- Phone
- (301) 319-8193
- Enumerated
- Apr 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (301) 295-2070
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,499 in Maryland → Look up another NPI →
Also registered at National Naval Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Allan Gradwell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Allan Gradwell among 1,499 clinical psychologist records in Maryland
William Allan Gradwell, PH.D. is one of 1,499 clinical psychologist records with a practice address in Maryland. 10% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 81% newer
- In a Medicare fileNo · 10% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2026 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
179 clinical psychologist records list a practice address in Bethesda
They are 179 of the 7,245 NPPES records with a practice address in Bethesda, and 1,499 clinical psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,499 in Maryland → Every provider in Bethesda → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Richard Bergthold, PSYDBethesda, MD 208891922071463
- Tram Dao, PSY.DBethesda, MD 208891386756914
- Louis Essers, PSYCHOLOGISTBethesda, MD 208891952303554
- Jane Fitzgerald, PHDBethesda, MD 208891184695298
- Joshua Friedlander, PSY.D.Bethesda, MD 208891407965296
- Ingrid Lim, PSY DBethesda, MD 208891669444386
- Kathryn Lindsey, PH.D.Bethesda, MD 208891245274810
- Treven Pickett, PSY.D.Bethesda, MD 208891659313526
Common questions
What is William Allan Gradwell, PH.D.'s NPI number?
William Allan Gradwell, PH.D.'s National Provider Identifier (NPI) is 1891758058, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Allan Gradwell, PH.D. located?
The NPPES record lists a practice address at National Naval Medical Center, Bethesda, MD, 20889. Phone: (301) 319-8193. Providers update this record themselves, so call before visiting.
How can I verify William Allan Gradwell, PH.D.'s license?
Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.