Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark Boguniewicz, MD
Allergy Physician in Denver, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790796555
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark Boguniewicz
Credential MD
Sex Male
Practice address 1400 Jackson St, Denver, CO, 80206
Phone (303) 388-4461
Fax (303) 270-2206
Enumeration date Aug 10, 2006
Last updated in NPPES Nov 12, 2020
Taxonomy & licenses
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 |
|---|---|---|---|
| 01301688 | 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.
Frequently asked questions
Where does Mark Boguniewicz practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Boguniewicz?
The National Provider Identifier (NPI) for Mark Boguniewicz is 1790796555, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Robert Lapidus Pulmonary Disease Physician · Denver, CO NPI 1760485023 William Lee Hematology & Oncology Physician · Denver, CO NPI 1639173693 James Good Pulmonary Disease Physician · Denver, CO NPI 1679577126 David Griffith Infectious Disease Physician · Denver, CO NPI 1245229301 Sandhya Rai-Sherpa Internal Medicine Physician · Denver, CO NPI 1326038944 Marc Cohen Rheumatology Physician · Denver, CO NPI 1053301739 Evan Stepp Pulmonary Disease Physician · Denver, CO NPI 1932199536 Stuart Kassan Rheumatology Physician · Denver, CO NPI 1093706475
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-12.