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Family Medicine Providers in Duncan, OK

Browse 20 Family Medicine providers listed in NPPES with a practice address in Duncan, Oklahoma.

20 Healthcare Providers

How Duncan compares with the U.S.

Duncan has 87 clinicians in Family Medicine per 100,000 residents, about 1.9 times the U.S. rate of 46.

That is 20 active clinicians in Family Medicine with a practice address in Duncan, for a population of 22,958.

The Oklahoma rate is 57 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 Family Medicine in Duncan listed in the CMS Medicare file (16 of 16) accept Medicare assignment. That is similar to the Oklahoma 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.

None of the 16 clinicians in Family Medicine in Duncan listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

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).

Family Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Family Medicine practitioners in Duncan, OK

Source: CMS PECOS
PECOS Enrolled Specialists 17 In Duncan, OK
Part B Lab & Imaging Eligible 18 Diagnostic Referrals
DME Ordering Eligible 18 Durable Medical Equipment
Home Health Agency Referrals 18 HHA Ordering Eligible
Showing 1โ€“20 of 20 providers
With recent CMS data first, then Aโ€“Z

Dr. Demetra G Cox , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
1324 N Harville Rd, Duncan, OK 735331514
Phone: 5802521373
NPI Identifier 1295761096
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Dr. Jamie William Cox , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
1307 Jackie Rd, Duncan, OK 735331566
Phone: 5807864018
NPI Identifier 1811974413
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Dr. Charles Wayne Dickerson , MD

Family Medicine

Active NPI Status
1601 Brookwood Ave, Duncan, OK 735331360
Phone: 5802523232
NPI Identifier 1962433748
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Dr. Jacob Aaron Fuller , DO

Family Medicine

Active NPI Status Accepts Medicare Assignment
2515 N Whisenant Dr Ste 301, Duncan, OK 735332684
Phone: 5802516806
NPI Identifier 1669094371
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Angela Lynn Gibbons , PHYSICIAN ASSISTANT

Family Medicine

Active NPI Status Accepts Medicare Assignment
1334 N Harville Rd, Duncan, OK 735331514
Phone: 5802558564
NPI Identifier 1871192633
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Dr. Judith Marie Gilbreth , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2434 Harville Rd, Suite 101, Duncan, OK 73533
Phone: 5802521918
NPI Identifier 1407823982
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Dr. Allon Gillispie , DO

Family Medicine

Active NPI Status Accepts Medicare Assignment
2515 N Whisenant Dr Ste 301, Duncan, OK 735332684
Phone: 5802516806
NPI Identifier 1508246570
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Dr. Myra Ann Gregory , DO, LLC

Family Medicine

Active NPI Status Accepts Medicare Assignment
1324 N Harville Rd, Duncan, OK 735331514
Phone: 5802521373
NPI Identifier 1669439899
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Dr. Christopher M Herndon , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2635 W Elk Ave, Duncan, OK 735331572
Phone: 5802526080
NPI Identifier 1578563672
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Dr. Melissa Marie Hurst , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2120 W Elk Ave, Duncan, OK 735331569
Phone: 5802516822
NPI Identifier 1679834345
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Dr. Mathew J Ivory , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2004 N Highway 81, Duncan, OK 735331460
Phone: 5802550500
NPI Identifier 1497781207
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Dr. Francis James Mcgouran , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2434 Harville Rd Ste 100, Duncan, OK 735330100
Phone: 5802558564
NPI Identifier 1205819570
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Dr. Harrell Douglas Proctor , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
2515 W Elk Ave, Duncan, OK 735331571
Phone: 5802526080
NPI Identifier 1467454769
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Dr. Kailee Roe , DO

Family Medicine

Active NPI Status Accepts Medicare Assignment
2635 W Elk Ave, Duncan, OK 735331572
Phone: 5802526080
NPI Identifier 1780268557
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Dr. Mark Rosekelly , DO

Family Medicine

Active NPI Status
4086 Country Club Rd Ste 2, Duncan, OK 735335580
Phone: 5809529221
NPI Identifier 1356790133
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Dr. William T Stewart , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
1324 N Harville Rd, Duncan, OK 735331514
Phone: 5802521373
NPI Identifier 1124054986
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Dr. Krystal Marie Vonfeldt , DO

Family Medicine

Active NPI Status Accepts Medicare Assignment
2120 W Elk Ave, Duncan, OK 735331569
Phone: 5802516822
NPI Identifier 1114294741
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Dr. Preston A Waters , MD

Family Medicine

Active NPI Status Accepts Medicare Assignment
1324 N Harville Rd, Duncan, OK 735331514
Phone: 5802521373
NPI Identifier 1356341457
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Dr. Cynthia Ann Norman , MD

Family Medicine

Active NPI Status
1315 Jackie Rd, Duncan, OK 735331566
Phone: 5802523466
NPI Identifier 1942289939
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Dr. Sallie Jane Waters , MD

Family Medicine

Active NPI Status
1313 Jackie Rd., Duncan, OK 73533
Phone: 5802518212
NPI Identifier 1982773685
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Frequently Asked Questions about Family Medicine in Duncan

How do I check a Family 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 Oklahoma 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.

Other Specialties in Duncan

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Cities with the most listed practitioners first.