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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

COMPREHENSIVE ENDOCRINOLOGY, P.C.
NPI 1093999005
Internal Medicine - Endocrinology, Diabetes & Metabolism in Denver, CO

Active since December 27, 2007CLIA 06D1077463 · Waiver
4545 E 9TH AVE STE 245, DENVER, CO 80220(888) 919-6316(303) 321-3668 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Sep 8, 2026, Jan 1, 2026 (2 updates tracked since 2026).

About Comprehensive Endocrinology, P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COMPREHENSIVE ENDOCRINOLOGY, P.C. (NPI 1093999005) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Denver, Colorado and active in the NPI registry since December 2007. The organization holds a CLIA Waiver certificate valid through December 10, 2027 and lists Claudia Panzer, President, as its authorized official.

NPPES Registry Identity

NPI1093999005
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameCOMPREHENSIVE ENDOCRINOLOGY, P.C.
Location Address4545 E 9TH AVE STE 245Denver, CO 80220-3919
Mailing Address4545 E 9th Ave Ste 245Denver, CO 80220-3919 · (888) 919-6316 · Fax (303) 321-3668
Phone(888) 919-6316
Fax(303) 321-3668
Organization SubpartNo
Authorized OfficialClaudia PanzerPresident · (888) 418-4988
Enumeration DateDecember 27, 2007
Last NPPES UpdateSeptember 8, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2026
✔ NPI 1093999005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
4545 E 9TH AVE STE 245, Denver, CO 80220
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 06D1077463

Comprehensive Endocrinology · Denver, CO
Active · expires Dec 10, 2027
CLIA Number06D1077463
Laboratory TypePhysician Office
Certificate Effective DateDecember 11, 2025
Certificate Expiration DateDecember 10, 2027
Laboratory DirectorClaudia A. Panzer MD
Laboratory Phone(888) 418-4988
Laboratory LocationComprehensive Endocrinology4500 E 9th Ave Suite 160, Denver, CO 80220
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JANE C. STEINER, M.D., PROF. LLC
Family Medicine
4545 E 9TH AVE STE 245
DENVER, CO 80220
Denver County (303) 320-4414
CLAUDIA I PANZER MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4545 E 9TH AVE STE 245
DENVER, CO 80220
Denver County (888) 919-6316

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Comprehensive Endocrinology, P.C.'s NPI number?

The NPI number for Comprehensive Endocrinology, P.C. is 1093999005. It was assigned to this organization in the NPPES registry on December 27, 2007.

Where is Comprehensive Endocrinology, P.C. located?

Comprehensive Endocrinology, P.C. is located at 4545 E 9th Ave Ste 245, Denver, CO 80220. The listed phone number is (888) 919-6316.

What is Comprehensive Endocrinology, P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Does Comprehensive Endocrinology, P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 06D1077463) is associated with this NPI, valid through December 10, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Comprehensive Endocrinology, P.C. was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.