Ann A. Warn, M.D.
Ophthalmology Physician · Lawton, OK
Ann A. Warn, M.D. is an ophthalmology physician with a practice address in Lawton, Oklahoma, and NPI 1316916794, issued on Mar 16, 2006. Check the license (Oklahoma 17787, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Ann A. Warn
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 17787 OK
Self-reported in NPPES; status is on the state search - Practice location
- 3201 W Gore Blvd, Lawton, OK 73505
- Phone
- (580) 250-5855
- Enumerated
- Mar 16, 2006
- Record last updated
- Aug 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (580) 250-5808
- Medicare enrollment
- Enrolled (PECOS I20100819000573); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1990
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 208 in Oklahoma → Look up another NPI →
Also registered at 3201 W Gore Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Richard Brittingham, MDInternal Medicine Physician1568457331
- Renato Caballero, MDFamily Medicine Physician1306831458
Verify Ann A. Warn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 17787Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,476 Medicare Part D claims for 318 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Latanoprost519 claims
- Dorzolamide-Timolol255 claims
- Timolol Maleate158 claims
- Prednisolone Acetate113 claims
- Dorzolamide Hcl65 claims
- Brimonidine Tartrate54 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 93.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.48
1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Dean Mcgee Eye InstituteLawton, OK
- OU Health Partners IncLawton, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann A. Warn among 208 ophthalmology physician records in Oklahoma
Ann A. Warn, M.D. is one of 208 ophthalmology physician records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 22% of them.
- NPI issued2006 · 22% of these records are older, 48% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1990 · median 2003 among the 128 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Oklahoma
There are 208 ophthalmology physician records in Oklahoma.
All 208 in Oklahoma → Every provider in Lawton → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Jean Hausheer, M.D.Lawton, OK 735051861490930
- Joseph Young, M.D.Lawton, OK 735051740214279
- Byron Miller, MDDuncan, OK 735331740220367
- Dean Sherry, M.D.Ardmore, OK 734011730142324
- Kamran Massoumi, M.D.Elk City, OK 736441639172604
- Charles Lawrence, M.D.Enid, OK 737011609874809
- Jeremy Reitinger, MDEnid, OK 737011578142477
- James Rogers, M.D.Enid, OK 737011306844428
Common questions
What is Ann A. Warn, M.D.'s NPI number?
Ann A. Warn, M.D.'s National Provider Identifier (NPI) is 1316916794, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann A. Warn, M.D. located?
The NPPES record lists a practice address at 3201 W Gore Blvd, Lawton, OK, 73505. Phone: (580) 250-5855. Providers update this record themselves, so call before visiting.
How can I verify Ann A. Warn, M.D.'s license?
NPPES lists Oklahoma license number 17787, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ann A. Warn, M.D. prescribe under Medicare Part D?
In 2024, Ann A. Warn, M.D. had 1,476 Medicare Part D claims for 318 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Ann A. Warn, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.