Richard B Williams PHD MD Inc
NPI 1225289788 · Internal Medicine Physician · South Pasadena, CA
Richard B Williams PHD MD Inc is a Internal Medicine Physician organization in South Pasadena, CA (NPI 1225289788).
Provider details
- NPI number
- 1225289788
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Richard Williams, President(626) 799-3616
- License
- G58242 (CA)
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
17 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
- 2008-10-02
- Last updated
- 2008-10-02
Frequently asked questions
- What is Richard B Williams PHD MD Inc's NPI number?
- Richard B Williams PHD MD Inc's National Provider Identifier (NPI) is 1225289788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Richard B Williams PHD MD Inc?
- Richard B Williams PHD MD Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard B Williams PHD MD Inc located?
- Richard B Williams PHD MD Inc's practice location on file with NPPES is 630 Mission St, South Pasadena, CA 91030-3038.
- What is Richard B Williams PHD MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Richard B Williams PHD MD Inc is (626) 799-3616.
- Who is the authorized official for Richard B Williams PHD MD Inc?
- The authorized official listed on Richard B Williams PHD MD Inc's NPPES record is Richard Williams, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Richard B Williams PHD MD Inc's NPI active?
- Yes — Richard B Williams PHD MD Inc's NPI (1225289788) is active in the NPPES registry as of the last update on 2008-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.