Margaret Neff
NPI 1356427157 · Critical Care Medicine (Internal Medicine) Physician · Palo Alto, CA
Margaret Neff is a Critical Care Medicine (Internal Medicine) Physician provider in Palo Alto, CA (NPI 1356427157).
Provider details
- NPI number
- 1356427157
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- G80330 (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
- 2006-10-27
- Last updated
- 2012-10-16
Frequently asked questions
- What is Margaret Neff's NPI number?
- Margaret Neff's National Provider Identifier (NPI) is 1356427157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Neff's specialty?
- Margaret Neff is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Neff located?
- Margaret Neff's practice location on file with NPPES is 3801 Miranda Ave Bldg 100-F3, Palo Alto, CA 94304-1207.
- What is Margaret Neff's phone number?
- The practice phone number listed in the NPPES registry for Margaret Neff is (650) 493-5000.
- Is Margaret Neff's NPI active?
- Yes — Margaret Neff's NPI (1356427157) is active in the NPPES registry as of the last update on 2012-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.