Mary Ann Yi-Ang Huang, M.D.
Gastroenterology · Internal Medicine (CMS) · Casper, WY
At a glance
1441 Wilkins Cir, Casper, WY 82601-1337
NPPES record updated Oct 6, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1441 Wilkins CirCasper, WY 82601-1337
Additional reported practice locations
315 N 25Th St Ste 201Billings, MT 591011328
Phone: 7209499992
Fax: 7207466462 801 Encino Pl Ne Ste B11
Albuquerque, NM 871022642
Phone: 7209499992
Fax: 7207466462 1601 E 19Th Ave Ste 5050
Denver, CO 802181200
Phone: 7207542155
Fax: 7207542106 1601 E 19Th Ave Ste 5150
Denver, CO 802181201
Phone: 7207542155
Fax: 7207542106 940 E 3Rd St Ste 201
Casper, WY 826013251
Phone: 7209499992
Fax: 7207466462
Education & affiliations
- Medical / professional school
- Loyola University Of Chicago, Stritch School Of Medicine
- Graduation year
- 1996
- CMS specialties
- Gastroenterology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Banner Wyoming Medical Center Casper, WY
- Billings Clinic Hospital Billings, MT
- Hca Healthone Presbyterian St. Lukes Denver, CO
- Intermountain Health St Vincent Regional Hospital Billings, MT
- Montrose Regional Health Montrose, CO
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Services other than consulting | $56,421.50 |
| Travel and lodging | $6,255.09 |
| Consulting fee | $6,200.00 |
| Food and beverage | $3,103.16 |
| Honoraria | $2,760.00 |
| Education | $64.54 |
Reporting companies
| Company | Amount |
|---|---|
| MADRIGAL PHARMACEUTICALS | $37,863.46 |
| ABBVIE INC. | $18,350.12 |
| GILEAD SCIENCES, INC. | $10,409.65 |
| IPSEN BIOPHARMACEUTICALS, INC | $5,915.59 |
| INTERCEPT PHARMACEUTICALS, INC. | $2,044.49 |
| NOVO NORDISK INC | $175.53 |
| ALEXION PHARMACEUTICALS, INC. | $25.43 |
| MERCK SHARP & DOHME LLC | $20.02 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology · Internal Medicine (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Dec 1, 2006
- Record updated
- Oct 6, 2026
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- MARY ANN HUANG SHERBONDY
- Reported credentials
- M.D.
Reported taxonomies and licenses
207R00000X
License reported: 4301076336 MI
207RG0100X · Primary
License reported: 12864C WY
207RG0100X
License reported: DR.0056376 CO
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1441 Wilkins CirCasper, WY 82601-1337
- Phone
- (307) 233-2700
Mailing address
1601 E 19TH AVE STE 5050DENVER, CO 802181200
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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