Individual provider

Mark Howshar, MD

Body Imaging Physician Diagnostic Radiology Physician Medicare enrolled

Mark Howshar, MD is a Body Imaging Physician in Cheyenne, WY, registered under NPI 1891710547. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 2003 BLUEGRASS CIR, Cheyenne, WY 82009. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

2003 BLUEGRASS CIR, Cheyenne, WY 82009 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
6390A WY Body Imaging Physician primary
TM2012-0809 NM Diagnostic Radiology Physician
25.000246 OH Diagnostic Radiology Physician
14051 MS Diagnostic Radiology Physician
75893 AZ Diagnostic Radiology Physician
37616 CO Body Imaging Physician
21149 NE Body Imaging Physician

Licences are recorded in 7 states: WY, NM, OH, MS, AZ, CO, NE. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Diagnostic Radiology
PAC ID
9133026248

Medicare enrolment is recorded as approved under the provider type Practitioner - Diagnostic Radiology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 7 states

This provider holds licences in 7 states: Arizona, Colorado, Mississippi, Nebraska, New Mexico, Ohio and Wyoming. The practice address on file is in Cheyenne, WY, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AZ Arizona
Licence
75893
Specialty
Diagnostic Radiology Physician
Verify with the AZ board →
CO Colorado
Licence
37616
Specialty
Body Imaging Physician
Verify with the CO board →
MS Mississippi
Licence
14051
Specialty
Diagnostic Radiology Physician
Verify with the MS board →
NE Nebraska
Licence
21149
Specialty
Body Imaging Physician
Verify with the NE board →
NM New Mexico
Licence
TM2012-0809
Specialty
Diagnostic Radiology Physician
Verify with the NM board →
OH Ohio
Licence
25.000246
Specialty
Diagnostic Radiology Physician
Verify with the OH board →
WY Wyoming practice address
Licence
6390A
Specialty
Body Imaging Physician
Verify with the WY board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Body Imaging covers

A Radiology doctor of Osteopathy that specializes in Body Imaging. NUCC Health Care Provider Taxonomy, code 2085B0100X
Allopathic & Osteopathic Physicians Radiology Body Imaging

All registered taxonomy codes

This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
2085B0100X Body Imaging Physician Body Imaging 6390A WY primary
2085R0202X Diagnostic Radiology Physician Diagnostic Radiology TM2012-0809 NM
2085R0202X Diagnostic Radiology Physician Diagnostic Radiology 25.000246 OH
2085R0202X Diagnostic Radiology Physician Diagnostic Radiology 14051 MS
2085R0202X Diagnostic Radiology Physician Diagnostic Radiology 75893 AZ
2085B0100X Body Imaging Physician Body Imaging 37616 CO
2085B0100X Body Imaging Physician Body Imaging 21149 NE

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1891710547 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJul 13, 2006
Last updatedApr 8, 2026
StatusActive
Sole proprietorNo
CredentialMD
Practice address 2003 BLUEGRASS CIR
Cheyenne, WY 82009
(307) 634-7711
Fax (307) 634-7760
Other identifiers 107532200 · MEDICAID WY EDS
20739 · BCBS OF NEBRASKA
5852001 · BCBS OF WYOMING
14385333 (CO)
5852001 · BCBS OF WY KID CARE CHIP
98633 · MEDICARE NEBRASKA
5852001 · BCBS FEDERAL WY
20478 · MEDICARE WYOMING
CO0211 · HEALTH NET OF AZ
This record was updated on Apr 8, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1891710547 passes the NPI check digit test The final digit 7 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 8 9 1 7 1 0 5 4
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 9 1 5 1 0 5 8

Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1891710547?
NPI 1891710547 is the National Provider Identifier assigned to Mark Howshar, MD in Cheyenne, WY. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Body Imaging cover?
A Radiology doctor of Osteopathy that specializes in Body Imaging.
How do I contact Mark Howshar, MD?
The phone number on file with NPPES is (307) 634-7711, last updated Apr 8, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Mark Howshar, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1891710547 a valid number?
Yes. 1891710547 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.