What is Edwin Colloff's NPI number?

Edwin Colloff's National Provider Identifier (NPI) is 1851498489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Edwin Colloff's specialty?

Edwin Colloff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Edwin Colloff located?

Edwin Colloff's practice location on file with NPPES is 866 Campus Dr, Palo Alto, CA 94305-8508.

What is Edwin Colloff's phone number?

The practice phone number listed in the NPPES registry for Edwin Colloff is (650) 498-2336.

Is Edwin Colloff's NPI active?

Yes — Edwin Colloff's NPI (1851498489) is active in the NPPES registry as of the last update on 2007-07-09.

IndividualActive

Edwin Colloff, MD

NPI 1851498489 · Internal Medicine Physician · Palo Alto, CA

Edwin Colloff, MD is a Internal Medicine Physician provider in Palo Alto, CA (NPI 1851498489).

Provider details

NPI number: 1851498489
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: G34055 (CA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense G34055 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

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

866 Campus Dr

Palo Alto, CA 94305-8508

Phone: (650) 498-2336

Approximate (ZIP-level) locationGet directions

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Mailing address