IndividualActive
John Ralph, PH.D.
NPI 1548308901 · Clinical Psychologist · Bethesda, MD
John Ralph, PH.D. is a Clinical Psychologist provider in Bethesda, MD (NPI 1548308901).
Provider details
- NPI number
- 1548308901
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 06087 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Walter Reed National Military Medical Center
8901 Rockville Pike
Bethesda, MD 20889-0001
Phone: (301) 295-2476
Approximate (ZIP-level) locationGet directions
Mailing address
Walter Reed National Military Medical Center
Bethesda, MD 20889-0001
Registry dates
- Enumerated
- 2007-02-01
- Last updated
- 2024-04-17
- Certified
- 2024-04-17
Frequently asked questions
- What is John Ralph's NPI number?
- John Ralph's National Provider Identifier (NPI) is 1548308901, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ralph's specialty?
- John Ralph is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Ralph located?
- John Ralph's practice location on file with NPPES is Walter Reed National Military Medical Center, Bethesda, MD 20889-0001.
- What is John Ralph's phone number?
- The practice phone number listed in the NPPES registry for John Ralph is (301) 295-2476.
- Is John Ralph's NPI active?
- Yes — John Ralph's NPI (1548308901) is active in the NPPES registry as of the last update on 2024-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.