Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Juan Pedro Frommer, M.D.

Nephrology Physician in Houston, TX · enumerated 2005.

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

National Provider Identifier

1528052404

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Registry record

Entity type Individual (Type 1)

Name Dr. Juan Pedro Frommer

Credential M.D.

Sex Male

Practice address 427 W 20th St Ste 300, Houston, TX, 77008

Phone (713) 791-1633

Fax (713) 791-1710

Enumeration date Sep 7, 2005

Last updated in NPPES Dec 17, 2024

Taxonomy & licenses

174400000X Specialist Other Service Providers · License F2667 (TX) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License F2667 (TX) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Juan Frommer?

Juan Frommer is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Christos Katsigiannis Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Houston, TX NPI 1194725234 Ralph Hunter Certified Registered Nurse Anesthetist · Houston, TX NPI 1184610677 J Pedro Frommer MD, PA Nephrology Physician · Houston, TX NPI 1326067554 J Pedro Frommer MD, PA Nephrology Physician · Houston, TX NPI 1144249285 Sumia Rashid Nephrology Physician · Houston, TX NPI 1073784252 Amit Sharma Vascular & Interventional Radiology Physician · Houston, TX NPI 1508153685 Hunter & Hunter Anesthesia Consultants LLC Certified Registered Nurse Anesthetist · Houston, TX NPI 1003238395 Christos Katsigiannis MD PA Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Houston, TX NPI 1477919322

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-17.