Michael Welch, M.D.
NPI 1699794222 · Allergy & Immunology Physician · San Diego, CA
Michael Welch, M.D. is a Allergy & Immunology Physician provider in San Diego, CA (NPI 1699794222).
Provider details
- NPI number
- 1699794222
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G34844 (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
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
- 2006-07-18
- Last updated
- 2016-03-14
Frequently asked questions
- What is Michael Welch's NPI number?
- Michael Welch's National Provider Identifier (NPI) is 1699794222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Welch's specialty?
- Michael Welch is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Welch located?
- Michael Welch's practice location on file with NPPES is 5776 Ruffin Rd, San Diego, CA 92123-1013.
- What is Michael Welch's phone number?
- The practice phone number listed in the NPPES registry for Michael Welch is (858) 292-1144.
- Is Michael Welch's NPI active?
- Yes — Michael Welch's NPI (1699794222) is active in the NPPES registry as of the last update on 2016-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.