William Growdon, M.D.
NPI 1427154533 · Obstetrics & Gynecology Physician · Santa Monica, CA
William Growdon, M.D. is a Obstetrics & Gynecology Physician provider in Santa Monica, CA (NPI 1427154533).
Provider details
- NPI number
- 1427154533
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G30280 (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
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
- 2006-09-15
- Last updated
- 2015-02-13
Frequently asked questions
- What is William Growdon's NPI number?
- William Growdon's National Provider Identifier (NPI) is 1427154533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Growdon's specialty?
- William Growdon is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is William Growdon located?
- William Growdon's practice location on file with NPPES is 1245 16th St, Santa Monica, CA 90404-1235.
- What is William Growdon's phone number?
- The practice phone number listed in the NPPES registry for William Growdon is (310) 794-7274.
- Is William Growdon's NPI active?
- Yes — William Growdon's NPI (1427154533) is active in the NPPES registry as of the last update on 2015-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.