Jeffrey J. Guttas. MD, Inc.
NPI 1073517009 · Allergy & Immunology Physician · San Mateo, CA
Jeffrey J. Guttas. MD, Inc. is a Allergy & Immunology Physician organization in San Mateo, CA (NPI 1073517009).
Provider details
- NPI number
- 1073517009
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Janice Ng, Billing Manager(650) 696-4101
- License
- G612560 (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
21 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
- 2005-06-08
- Last updated
- 2020-08-22
Frequently asked questions
- What is Jeffrey J. Guttas. MD, Inc.'s NPI number?
- Jeffrey J. Guttas. MD, Inc.'s National Provider Identifier (NPI) is 1073517009, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jeffrey J. Guttas. MD, Inc.?
- Jeffrey J. Guttas. MD, Inc. is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey J. Guttas. MD, Inc. located?
- Jeffrey J. Guttas. MD, Inc.'s practice location on file with NPPES is 100 S San Mateo Dr, San Mateo, CA 94401-3805.
- What is Jeffrey J. Guttas. MD, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Jeffrey J. Guttas. MD, Inc. is (650) 696-4101.
- Who is the authorized official for Jeffrey J. Guttas. MD, Inc.?
- The authorized official listed on Jeffrey J. Guttas. MD, Inc.'s NPPES record is Janice Ng, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jeffrey J. Guttas. MD, Inc.'s NPI active?
- Yes — Jeffrey J. Guttas. MD, Inc.'s NPI (1073517009) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.