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John Spence, M.D.
NPI 1821004565 · Anesthesiology Physician · Glendale, CA
John Spence, M.D. is a Anesthesiology Physician provider in Glendale, CA (NPI 1821004565).
Provider details
- NPI number
- 1821004565
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A22649 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
1812 Verdugo Blvd
Glendale, CA 91208-1407
Phone: (818) 790-7100
Fax: (818) 952-4618
Street-level locationGet directions
Mailing address
225 S Lake Ave
Pasadena, CA 91101-3005
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Spence's NPI number?
- John Spence's National Provider Identifier (NPI) is 1821004565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Spence's specialty?
- John Spence is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Spence located?
- John Spence's practice location on file with NPPES is 1812 Verdugo Blvd, Glendale, CA 91208-1407.
- What is John Spence's phone number?
- The practice phone number listed in the NPPES registry for John Spence is (818) 790-7100.
- Is John Spence's NPI active?
- Yes — John Spence's NPI (1821004565) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.