John Holcombe, MD
NPI 1275573404 · Anesthesiology Physician · Newport Beach, CA
John Holcombe, MD is a Anesthesiology Physician provider in Newport Beach, CA (NPI 1275573404).
Provider details
- NPI number
- 1275573404
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G64070 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-06-07
- Last updated
- 2012-10-22
Frequently asked questions
- What is John Holcombe's NPI number?
- John Holcombe's National Provider Identifier (NPI) is 1275573404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Holcombe's specialty?
- John Holcombe is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Holcombe located?
- John Holcombe's practice location on file with NPPES is One Hoag Drive, Newport Beach, CA 92663-4162.
- What is John Holcombe's phone number?
- The practice phone number listed in the NPPES registry for John Holcombe is (949) 764-6954.
- Is John Holcombe's NPI active?
- Yes — John Holcombe's NPI (1275573404) is active in the NPPES registry as of the last update on 2012-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.