Nancy Cummings, MD
NPI 1598728917 · Allergy & Immunology Physician · Menlo Park, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Cummings, MD is a Allergy & Immunology Physician provider in Menlo Park, CA (NPI 1598728917).
Provider details
- NPI number
- 1598728917
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G53678 (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
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
- 2006-04-07
- Last updated
- 2012-01-19
Frequently asked questions
- What is Nancy Cummings's NPI number?
- Nancy Cummings's National Provider Identifier (NPI) is 1598728917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Cummings's specialty?
- Nancy Cummings is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Cummings located?
- Nancy Cummings's practice location on file with NPPES is 1300 Crane Street, Menlo Park, CA 94025-4429.
- What is Nancy Cummings's phone number?
- The practice phone number listed in the NPPES registry for Nancy Cummings is (650) 498-6500.
- Does Nancy Cummings accept Medicare?
- Nancy Cummings is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Cummings's NPI active?
- Yes — Nancy Cummings's NPI (1598728917) is active in the NPPES registry as of the last update on 2012-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.