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Internal Medicine - Gastroenterology Specialists in Lone Tree, CO

Browse 25 Internal Medicine - Gastroenterology providers listed in NPPES with a practice address in Lone Tree, Colorado.

25 Healthcare Providers

How Lone Tree compares with the U.S.

Lone Tree has 177 clinicians in Internal Medicine - Gastroenterology per 100,000 residents, 28.6 times the U.S. rate of 6.2.

That is 25 active clinicians in Internal Medicine - Gastroenterology with a practice address in Lone Tree, for a population of 14,147.

The Colorado rate is 5.7 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.

100% of clinicians in Internal Medicine - Gastroenterology in Lone Tree listed in the CMS Medicare file (24 of 24) accept Medicare assignment. That is similar to the Colorado share of 99%.

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.

63% of clinicians in Internal Medicine - Gastroenterology in Lone Tree listed in the CMS Medicare file (15 of 24) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Colorado share of 37%.

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 - Gastroenterology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Gastroenterology practitioners in Lone Tree, CO

Source: CMS PECOS
PECOS Enrolled Specialists 24 In Lone Tree, CO
Part B Lab & Imaging Eligible 24 Diagnostic Referrals
DME Ordering Eligible 24 Durable Medical Equipment
Home Health Agency Referrals 24 HHA Ordering Eligible
Showing 1โ€“20 of 25 providers
With recent CMS data first, then Aโ€“Z

Dr. Paul Hobbs , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9548 Park Meadows Dr, Lone Tree, CO 801245315
Phone: 7208480000
NPI Identifier 1780034074
View Full Profile

Dr. Madhan Srinath Iyengar , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1326316647
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Dr. Vaman S Jakribettuu , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1487696043
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Dr. Geoffrey S. Jensen , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy, Ste. 312, Lone Tree, CO 801245520
Phone: 3037888888
NPI Identifier 1518013143
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Dr. Lawrence Kim , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy, Ste 312, Lone Tree, CO 801245520
Phone: 3037888888
NPI Identifier 1275647414
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Dr. Hanna M Kraus , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1659392793
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Dr. Erika M Lee , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy Ste 312, Lone Tree, CO 801245525
Phone: 3037888888
NPI Identifier 1689848350
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Dr. Theresa Lee , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy Ste 312, Lone Tree, CO 801245525
Phone: 3037888888
NPI Identifier 1457676645
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Dr. Tom G Matzakos , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1619004629
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Dr. Louis A Morris , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1407990294
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Dr. Elijah Mun , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9548 Park Meadows Dr, Lone Tree, CO 801245315
Phone: 7208480000
NPI Identifier 1942662903
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Dr. Blake Alan Niccum , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9548 Park Meadows Dr, Lone Tree, CO 801245315
Phone: 7208480000
NPI Identifier 1346731825
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Dr. Matthew Nichols , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy Ste 312, Lone Tree, CO 801245525
Phone: 3037888888
NPI Identifier 1952451379
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Dr. Cary H Patt , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy, Ste 312, Lone Tree, CO 801245520
Phone: 3037888888
NPI Identifier 1801900048
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Dr. Erik J Pieramici , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy, Ste 312, Lone Tree, CO 801245520
Phone: 3037888888
NPI Identifier 1710091954
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Dr. Bernard J Powers , MD

Internal Medicine - Gastroenterology

Active NPI Status
10103 Ridgegate Pkwy, Ste 312, Lone Tree, CO 801245520
Phone: 3037888888
NPI Identifier 1831202241
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Dr. Mark E Powis , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1386771327
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Dr. Marlana J Radcliffe , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10103 Ridgegate Pkwy Ste 312, Lone Tree, CO 801245525
Phone: 3037888888
NPI Identifier 1255794715
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Dr. John F Riopelle , DO

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1851428882
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Dr. Anthony William Robateau Colon , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
10240 Park Meadows Dr, Lone Tree, CO 801245425
Phone: 3033384545
NPI Identifier 1750841730
View Full Profile

Frequently Asked Questions about Internal Medicine - Gastroenterology in Lone Tree

How do I check a Internal Medicine - Gastroenterology 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.