Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John R. Nienow, MD, Inc

Organization Internal Medicine Physician · NPI 1134498165

John R. Nienow, MD, Inc is an Internal Medicine Physician in Sacramento, California. Registered with an NPI since 2011.

In the registry since
2011
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

500 University Ave 200
Sacramento, CA 95825-6504
Phone: (916) 679-3693
Fax: (916) 679-3699
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1134498165
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Nienow — President · (916) 679-3693
NPI enumeratedDecember 20, 2011
Last updated in NPPESDecember 20, 2011
Mailing address500 University Ave, 200, Sacramento, CA 95825-6504

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