Mark G. Birkmann, O.D.
Optometrist · Georgetown, TX
Mark G. Birkmann, O.D. is an optometrist with a practice address in Georgetown, Texas, and NPI 1609880889, issued on Jul 27, 2006. Check the license (Texas 9137TG, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark G. Birkmann
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 9137TG TX
Self-reported in NPPES; status is on the state search - Practice location
- 1013 W University Ave Ste 135, Georgetown, TX 78628
- Phone
- (512) 869-8821
- Enumerated
- Jul 27, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (512) 869-8849
- Medicare enrollment
- Enrolled (PECOS I20171212001250); accepts Medicare assignment
- Medical or professional school
- University Of Missouri St Louis - School Of Optometry, 1992
- Entity
- Type 1 · individual
8 nearest optometrist records → All 5,006 in Texas → Look up another NPI →
Verify Mark G. Birkmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 9137TGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average optometrist in 2024
252 Medicare Part D claims for 47 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Latanoprost145 claims
- Brimonidine Tartrate30 claims
- Timolol Maleate30 claims
- Dorzolamide Hcl14 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.
Mark G. Birkmann among 5,006 optometrist records in Texas
Mark G. Birkmann, O.D. is one of 5,006 optometrist records with a practice address in Texas. 74% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 65% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1992 · median 2010 among the 2,894 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 optometrist records list a practice address in Georgetown
They are 22 of the 1,587 NPPES records with a practice address in Georgetown, and 5,006 optometrist records in Texas.
All 5,006 in Texas → Every provider in Georgetown → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Pamela Evans, O.D.Georgetown, TX 786281316951056
- Jason McCain, O.D.Georgetown, TX 786281952570400
- Amie Nguyen, O.D.Georgetown, TX 786281457965477
- Shilpa Patel, O.DGeorgetown, TX 786281396767760
- Paige Quinlivan, O.D.Georgetown, TX 786281225073414
- David Quinlivan, O.D.Georgetown, TX 786281891726642
- Stephen Schaefer, O.D., P.A.Georgetown, TX 786281285739391
- Mark Sturm, O.D.Georgetown, TX 786281861706202
Common questions
What is Mark G. Birkmann, O.D.'s NPI number?
Mark G. Birkmann, O.D.'s National Provider Identifier (NPI) is 1609880889, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark G. Birkmann, O.D. located?
The NPPES record lists a practice address at 1013 W University Ave Ste 135, Georgetown, TX, 78628. Phone: (512) 869-8821. Providers update this record themselves, so call before visiting.
How can I verify Mark G. Birkmann, O.D.'s license?
NPPES lists Texas license number 9137TG, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Mark G. Birkmann, O.D. prescribe under Medicare Part D?
In 2024, Mark G. Birkmann, O.D. had 252 Medicare Part D claims for 47 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
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.