Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore Tzeremas, MD

Nephrology Physician in Tempe, AZ · enumerated 2006 · practices at Southwest Kidney Institute, Plc.

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

National Provider Identifier

1831252469

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Registry record

Entity type Individual (Type 1)

Name Theodore Tzeremas

Credential MD

Sex Male

Practice address 2141 E Warner Rd, Suite 101, Tempe, AZ, 85284

Phone (480) 969-8714

Fax (480) 464-0189

Enumeration date Dec 18, 2006

Last updated in NPPES Jun 19, 2012

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 248701 (NY) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 42268 (AZ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
465652	Medicaid	AZ	-

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

Is NPI 1831252469 active?

Yes, as of the latest NPPES snapshot, NPI 1831252469 is active (record last updated 2012-06-19).

How do I verify Theodore Tzeremas's NPI record?

Cross-check NPI 1831252469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Kerry Cooper Nephrology Physician · Tempe, AZ NPI 1912970799 Southwest Kidney Institute, Plc Nephrology Physician · Tempe, AZ NPI 1659316008 Leah Beaird Renal Nutrition Registered Dietitian · Tempe, AZ NPI 1346277688 Clyde Mendonca Nephrology Physician · Tempe, AZ NPI 1710919246 Lori Cooper Adult Health Nurse Practitioner · Tempe, AZ NPI 1902904394 Janet San George Family Nurse Practitioner · Tempe, AZ NPI 1174659718 Courtney Cronin Naturopath · Tempe, AZ NPI 1730308966 Carrie Mattie Family Nurse Practitioner · Tempe, AZ NPI 1134465008

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-19.