Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carl H Cramer II, MD

Pediatric Nephrology Physician in Rochester, MN · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659392652

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Registry record

Entity type Individual (Type 1)

Name Carl H Cramer II

Credential MD

Sex Male

Practice address 200 1st St Sw, Rochester, MN, 55905

Phone (507) 284-2511

Enumeration date Jul 22, 2006

Last updated in NPPES Aug 13, 2020

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 48439 (MN) Secondary

2080P0210X Pediatric Nephrology Physician Allopathic & Osteopathic Physicians · License 48439 (MN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Carl Cramer's NPI record?

Cross-check NPI 1659392652 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659392652 active?

Yes, as of the latest NPPES snapshot, NPI 1659392652 is active (record last updated 2020-08-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-13.