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Internal Medicine Providers in Westminster, CO

Browse 42 Internal Medicine providers listed in NPPES with a practice address in Westminster, Colorado.

42 Healthcare Providers

How Westminster compares with the U.S.

Westminster has 36 clinicians in Internal Medicine per 100,000 residents, 18% lower than the U.S. rate of 44.

That is 42 active clinicians in Internal Medicine with a practice address in Westminster, for a population of 115,484.

That is close to the Colorado rate of 35.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

96% of clinicians in Internal Medicine in Westminster listed in the CMS Medicare file (22 of 23) accept Medicare assignment. That is similar to the Colorado share of 97%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

26% of clinicians in Internal Medicine in Westminster listed in the CMS Medicare file (6 of 23) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Colorado share of 36%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Westminster, CO

Source: CMS PECOS
PECOS Enrolled Specialists 26 In Westminster, CO
Part B Lab & Imaging Eligible 26 Diagnostic Referrals
DME Ordering Eligible 27 Durable Medical Equipment
Home Health Agency Referrals 26 HHA Ordering Eligible
Showing 1โ€“20 of 42 providers
With recent CMS data first, then Aโ€“Z

Dr. Rebecca L Agnew , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
7701 Sheridan Blvd, Westminster, CO 800032605
Phone: 3033384545
NPI Identifier 1093845836
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Dr. Brian O'shea Ahlstrand , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1487920690
View Full Profile

Dr. Tiffany Lynn Ancheril , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3520 W 92nd Ave Ste 104, Westminster, CO 800313304
Phone: 3034296600
NPI Identifier 1417006768
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Dr. Terrence W Boland , MD

Internal Medicine

Active NPI Status
7701 Sheridan Blvd, Westminster, CO 800032605
Phone: 3033444545
NPI Identifier 1851428817
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Dr. Casey Ann Carroll , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7701 Sheridan Blvd, Westminster, CO 800032605
Phone: 3033384545
NPI Identifier 1063807733
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Dr. Stephen Matthew Cox , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
14300 Orchard Pkwy, Westminster, CO 800239206
Phone: 7206273761
NPI Identifier 1194066027
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Dr. Joanna L Culver , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1356753511
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Dr. Emma Elizabeth Foraker , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1548766579
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Dr. James T Hardee , MD

Internal Medicine

Active NPI Status
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1134256720
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Dr. Laura Erin Harper , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
7701 Sheridan Blvd, Westminster, CO 800032605
Phone: 3033384545
NPI Identifier 1598392425
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Dr. Laura Pape Hill , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1477044642
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Dr. Alison Hirsh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
14300 Orchard Pkwy, Westminster, CO 800239206
Phone: 7206273761
NPI Identifier 1992777247
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Dr. Joel Leland Jorgenson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
7701 Sheridan Blvd, Westminster, CO 800032605
Phone: 3033384545
NPI Identifier 1457627267
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Dr. David A Kaplan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
14300 Orchard Pkwy, Westminster, CO 800239206
Phone: 7206274200
NPI Identifier 1326283417
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Dr. Angela Rose Kill , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
14300 Orchard Pkwy, Westminster, CO 800239206
Phone: 3033384545
NPI Identifier 1225195829
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Dr. Mai Huong Lee , MD

Internal Medicine

Active NPI Status
8300 Alcott St, Suite 302, Westminster, CO 800314008
Phone: 3034280533
NPI Identifier 1710069422
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Dr. John D Mahoney , MD

Internal Medicine

Active NPI Status
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1730223512
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Dr. Daniel S Mcaninch , MD

Internal Medicine

Active NPI Status
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1962539940
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Dr. Renee L Micielli , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
11245 Huron St, Westminster, CO 802342806
Phone: 3033384545
NPI Identifier 1134248545
View Full Profile

Dr. Caroline S Miles , MD

Internal Medicine

Active NPI Status
11245 Huron St, Westminster, CO 802342806
Phone: 3037435855
NPI Identifier 1477683233
View Full Profile

Frequently Asked Questions about Internal Medicine in Westminster

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Colorado licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.