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Allergists in Oklahoma

Data updated monthly · Last refresh October 2026

19 Allergy & Immunology providers practice in Oklahoma, including 6 (32%) offering telehealth. The largest concentration is in Oklahoma City. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

19providers
6telehealth
Oklahoma Citytop city

Allergy & Immunology by city in Oklahoma

Choose a city to see providers there.

Allergy & Immunology in Oklahoma City8 providers
Allergy & Immunology in Tulsa5 providers
Allergy & Immunology in Broken Arrow2 providers
Allergy & Immunology in Enid1 providers
Allergy & Immunology in Edmond1 providers
Allergy & Immunology in Shawnee1 providers
Allergy & Immunology in Lawton1 providers

Where Allergists in Oklahoma practice

From CMS Medicare enrollment records covering 12 of the 19 providers listed here (63%). Providers who do not bill Medicare are not included in these figures.

25%solo or small practice (under 10 clinicians)
42%mid-size group (10 to 99)
33%large group or health system (100+)

Largest practice groups

Group (as registered with Medicare)AllergistsAll clinicians in groupMain city
Oklahoma Allergy and Asthma Clinic512Oklahoma City
Warren Clinic Inc.2787Tulsa
T.L. Carey, M.D. and Associates, Inc..26Tulsa

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingAllergists affiliated
Mercy Hospital Oklahoma City, Inc.Oklahoma CityNonprofit4 of 54
Saint Francis Hospital, Inc.TulsaNonprofit5 of 53
Saint Francis Hospital South, LLCTulsaNonprofit5 of 52

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Allergy & Immunology providers in Oklahoma

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Bret Haymore, MD
Broken Arrow, OK · $1,263 in drug and device payments (2025) · (918) 994-5200
Dr. Mark Hamra, M.D.
Broken Arrow, OK · No drug or device payments recorded (2025) · (918) 259-3141
Dr. Nalin U.g., D.O,
Edmond, OK · $25,278 in drug and device payments (2025) · (405) 849-4025
Dr. Timothy Trojan, MD
Enid, OK · $2,399 in drug and device payments (2025) · Telehealth · (580) 366-0844
Dr. Aisha Mohammed, MD
Lawton, OK · $1,806 in drug and device payments (2025) · Telehealth · (580) 357-9090
Dr. Amy Darter, M.D.
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 607-4333
Dr. Dean Atkinson, MD
Oklahoma City, OK · $2,086 in drug and device payments (2025) · Telehealth · (405) 235-0040
Dr. James Wells, MD
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 235-0040
Dr. John Bozalis, MD
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 235-0040
Dr. Patricia Overhulser, M.D.
Oklahoma City, OK · $1,072 in drug and device payments (2025) · (405) 235-0040
Dr. Richard Hatch, MD
Oklahoma City, OK · $1,671 in drug and device payments (2025) · Telehealth · (405) 235-0040
Dr. Shahan Stutes, M.D.
Oklahoma City, OK · $6,382 in drug and device payments (2025) · Telehealth · (405) 235-0040
Dr. Warren Filley, M.D.
Oklahoma City, OK · $120 in drug and device payments (2025) · (405) 235-0040
Dr. Wallace Pratt, MD
Shawnee, OK · No drug or device payments recorded (2025) · (405) 273-5801
Dr. Christopher Gifford, MD
Tulsa, OK · No drug or device payments recorded (2025) · (918) 495-2636
Dr. Lynn Wiens, MD
Tulsa, OK · $3,609 in drug and device payments (2025) · (918) 495-2636
Dr. Michelle Montalbano, M.D.
Tulsa, OK · $2,378 in drug and device payments (2025) · Telehealth · (918) 481-8100
Dr. Terence Carey, M.D.
Tulsa, OK · $3,653 in drug and device payments (2025) · (918) 481-8100
Dr. Weyman Lam
Tulsa, OK · $12,109 in drug and device payments (2025) · (918) 495-2636

Conditions Allergy & Immunology providers in Oklahoma commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Allergy & Immunology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Allergy & Immunology providers are in Oklahoma?

There are 19 Allergy & Immunology providers with active NPI records practicing in Oklahoma, according to federal NPPES data refreshed monthly.

Do Allergy & Immunology providers in Oklahoma offer telehealth?

Yes. 6 of the 19 Allergy & Immunology providers in Oklahoma (about 32%) report offering telehealth services in CMS data.

Which cities in Oklahoma have the most Allergy & Immunology providers?

Oklahoma City (8), Tulsa (5), Broken Arrow (2) have the highest concentration of Allergy & Immunology providers in Oklahoma.

What conditions do Allergy & Immunology providers in Oklahoma treat?

Allergy & Immunology providers commonly treat seasonal allergies, food allergies, asthma, eczema, chronic hives and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Allergists in Oklahoma work in independent practices or large health systems?

Among 12 Allergists in Oklahoma enrolled in Medicare, 25% bill through a solo or small practice with fewer than 10 clinicians, 42% through a mid-size group of 10 to 99, and 33% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Allergists in Oklahoma work at?

According to CMS facility affiliation records, the Oklahoma hospitals where the most Allergists hold privileges are Mercy Hospital Oklahoma City, Inc. in Oklahoma City; Saint Francis Hospital, Inc. in Tulsa; Saint Francis Hospital South, LLC in Tulsa.

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Related

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Allergy & Immunology in Oklahoma? Get featured.