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Internal Medicine Providers in Boulder, CO

Browse 74 Internal Medicine providers listed in NPPES with a practice address in Boulder, Colorado.

74 Healthcare Providers

How Boulder compares with the U.S.

Boulder has 70 clinicians in Internal Medicine per 100,000 residents, about 1.6 times the U.S. rate of 44.

That is 74 active clinicians in Internal Medicine with a practice address in Boulder, for a population of 106,433.

The Colorado rate is 35 per 100,000 residents.

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. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

98% of clinicians in Internal Medicine in Boulder listed in the CMS Medicare file (40 of 41) 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.

59% of clinicians in Internal Medicine in Boulder listed in the CMS Medicare file (24 of 41) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher 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 Boulder, CO

Source: CMS PECOS
PECOS Enrolled Specialists 43 In Boulder, CO
Part B Lab & Imaging Eligible 44 Diagnostic Referrals
DME Ordering Eligible 47 Durable Medical Equipment
Home Health Agency Referrals 44 HHA Ordering Eligible
Showing 1โ€“20 of 74 providers
With recent CMS data first, then Aโ€“Z

Dr. Jeska Albuisson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4747 Arapahoe Ave, Boulder, CO 803031133
Phone: 3034157610
NPI Identifier 1184899320
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Dr. Carl Kelly Aldin , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4747 Arapahoe Ave, Boulder, CO 803031131
Phone: 3034157000
NPI Identifier 1932728565
View Full Profile

Dr. Kristina A Anton-Schnell , MD

Internal Medicine

Active NPI Status
7490 Clubhouse Rd # 105, Boulder, CO 803013720
Phone: 7205821212
NPI Identifier 1477577153
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Dr. William Lawson Blanchet , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2880 Folsom St, Suite 100, Boulder, CO 803043739
Phone: 3033277047
NPI Identifier 1659466837
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Dr. Kimberly Brandstetter , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5495 Arapahoe Ave Ste 100, Boulder, CO 803031224
Phone: 3034154250
NPI Identifier 1205134350
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Dr. Hillary L Browne , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2575 Spruce St, Boulder, CO 803023806
Phone: 3034493594
NPI Identifier 1316936198
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Dr. Amy O Campbell , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2880 Folsom St Ste 100, Boulder, CO 803043769
Phone: 3033277047
NPI Identifier 1033108642
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Dr. Jeffrey E Carter , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1100 Balsam Ave, Boulder, CO 803043404
Phone: 3034402398
NPI Identifier 1457441032
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Dr. Jennifer Christensen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043586
Phone: 3034403268
NPI Identifier 1750365417
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Dr. Santiago De La Garza , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4747 Arapahoe Ave, Boulder, CO 803031131
Phone: 3034157610
NPI Identifier 1063830313
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Dr. Jose M Delgado , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043573
Phone: 3034403082
NPI Identifier 1275559049
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Dr. Chester J Dreiman , MD

Internal Medicine

Active NPI Status
2562 Briarwood Dr, Boulder, CO 803056804
Phone: 3035012195
NPI Identifier 1013983196
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Dr. Coco Dughi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043573
Phone: 3034403000
NPI Identifier 1356325013
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Dr. Meighan W Elder , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
580 Mohawk Dr, Boulder, CO 803033712
Phone: 3033384545
NPI Identifier 1649307661
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Dr. Laura Krupnick Erben , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043586
Phone: 3034403082
NPI Identifier 1265637607
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Dr. Bradley D Fanestil , MD

Internal Medicine

Active NPI Status Telehealth Services Available
4801 Riverbend Rd Ste 120b, Boulder, CO 803012613
Phone: 3034158615
NPI Identifier 1023156254
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Dr. Wael F. Garas , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5495 Arapahoe Ave Ste 100, Boulder, CO 80303
Phone: 3034154250
NPI Identifier 1033181375
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William Logan Gladney

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043586
Phone: 3034403082
NPI Identifier 1548722820
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Dr. Gilad Shalag Gordon , MD

Internal Medicine

Active NPI Status
1565 Rockmont Cir, Boulder, CO 803056822
Phone: 3035176212
NPI Identifier 1609110006
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Dr. Connor W Graham , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2750 Broadway St, Boulder, CO 803043573
Phone: 3034403000
NPI Identifier 1669421301
View Full Profile

Frequently Asked Questions about Internal Medicine in Boulder

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.