Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark D Sawyer, M.D.
Urology Physician in Aurora, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1952519308
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark D Sawyer
Credential M.D.
Sex Male
Practice address 12631 E 17th Ave Ste C305, Uc Anschutz Medical Center, Division of Urology, Aurora, CO, 80045
Phone (720) 331-6645
Fax (888) 250-6983
Enumeration date May 18, 2007
Last updated in NPPES Jan 20, 2015
Taxonomy & licenses
208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD0000046244 (TN) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 0101251164 (VA) Secondary
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 |
|---|---|---|---|
| 1952519308 | Medicaid | VA | - |
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.
Frequently asked questions
What specialty is Mark Sawyer?
Mark Sawyer is registered in NPPES with the primary taxonomy of Urology 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-20.