Robert Keller, MD
NPI 1598980880 · Internal Medicine Physician · Monterey, CA
Enrolled with Medicare as Order and Referring Only - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Keller, MD is a Internal Medicine Physician provider in Monterey, CA (NPI 1598980880).
Provider details
- NPI number
- 1598980880
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G29481 (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
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
- 2007-04-13
- Last updated
- 2015-11-05
Frequently asked questions
- What is Robert Keller's NPI number?
- Robert Keller's National Provider Identifier (NPI) is 1598980880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Keller's specialty?
- Robert Keller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Keller located?
- Robert Keller's practice location on file with NPPES is 950 Cass St, Monterey, CA 93940-4546.
- What is Robert Keller's phone number?
- The practice phone number listed in the NPPES registry for Robert Keller is (831) 373-1100.
- Does Robert Keller accept Medicare?
- Robert Keller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Keller's NPI active?
- Yes — Robert Keller's NPI (1598980880) is active in the NPPES registry as of the last update on 2015-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.