Robert Zimmerman, MD
NPI 1164407565 · Internal Medicine Physician · Toledo, OH
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Zimmerman, MD is a Internal Medicine Physician provider in Toledo, OH (NPI 1164407565).
Provider details
- NPI number
- 1164407565
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35056466 (OH)
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
- 2005-12-08
- Last updated
- 2017-06-29
Frequently asked questions
- What is Robert Zimmerman's NPI number?
- Robert Zimmerman's National Provider Identifier (NPI) is 1164407565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Zimmerman's specialty?
- Robert Zimmerman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Zimmerman located?
- Robert Zimmerman's practice location on file with NPPES is 1200 S Detroit Ave, Toledo, OH 43614-5903.
- What is Robert Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Robert Zimmerman is (419) 259-2000.
- Does Robert Zimmerman accept Medicare?
- Robert Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Zimmerman's NPI active?
- Yes — Robert Zimmerman's NPI (1164407565) is active in the NPPES registry as of the last update on 2017-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.