Joan Riker, MD
NPI 1376653113 · Geriatric Medicine (Internal Medicine) Physician · Amarillo, TX
Joan Riker, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Amarillo, TX (NPI 1376653113).
Provider details
- NPI number
- 1376653113
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G5539 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2013-03-13
Frequently asked questions
- What is Joan Riker's NPI number?
- Joan Riker's National Provider Identifier (NPI) is 1376653113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Riker's specialty?
- Joan Riker is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Joan Riker located?
- Joan Riker's practice location on file with NPPES is 7910 London Ct, Amarillo, TX 79119-6523.
- What is Joan Riker's phone number?
- The practice phone number listed in the NPPES registry for Joan Riker is (806) 290-8258.
- Is Joan Riker's NPI active?
- Yes — Joan Riker's NPI (1376653113) is active in the NPPES registry as of the last update on 2013-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.