Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Tomcho, MD

Pediatrics Physician in Denver, CO · enumerated 2005.

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

National Provider Identifier

1528069457

Verified

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Registry record

Entity type Individual (Type 1)

Name Margaret Tomcho

Credential MD

Sex Female

Practice address 777 Bannock St, Mc 3000, Denver, CO, 80204

Phone (303) 436-4320

Enumeration date Aug 2, 2005

Last updated in NPPES May 4, 2012

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 40385 (CO) 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
18757855	Medicaid	CO	-

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 1528069457 active?

Yes, as of the latest NPPES snapshot, NPI 1528069457 is active (record last updated 2012-05-04).

How do I verify Margaret Tomcho's NPI record?

Cross-check NPI 1528069457 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

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Wing Hsieh Optometrist · Denver, CO NPI 1891799672 Teresa Wilcox Adult Health Nurse Practitioner · Denver, CO NPI 1316941735 Walter Biffl Surgery Physician · Denver, CO NPI 1962408260 Daniel Hammond Family Nurse Practitioner · Denver, CO NPI 1841296456 Elizabeth Cookson Psychiatry Physician · Denver, CO NPI 1508866831 Eric Peterson Family Medicine Physician · Denver, CO NPI 1639179989 Mark Berman Oral and Maxillofacial Surgery (Dentist) · Denver, CO NPI 1174524334 John Curtin Gynecologic Oncology Physician · Denver, CO NPI 1528060639

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-04.