Brett Thomas Zimmerman, DO
Obstetrics & Gynecology Physician · Granbury, TX
Brett Thomas Zimmerman, DO is an obstetrics & gynecology physician with a practice address in Granbury, Texas, and NPI 1770576571, issued on Aug 26, 2005. Check the license (Texas U3763, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brett Thomas Zimmerman
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- U3763 TX
008805 AZ
5101016668 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1212 Medical Plaza CT, Granbury, TX 76048
- Phone
- (817) 279-1776
- Enumerated
- Aug 26, 2005
- Record last updated
- Jul 5, 2023
- Fax
- (817) 573-2239
- Medicare enrollment
- Enrolled (PECOS I20230725001088); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 1997
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →
Also registered at 1212 Medical Plaza CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kira Butler, MDObstetrics & Gynecology Physician1487683066
- Summer Cumba, PAMedical Physician Assistant1104927136
- Courtney Feist, FNPFamily Nurse Practitioner1568135978
- Donald Howser, M.D.Obstetrics & Gynecology Physician1750389425
- Sarah Jordan, M.D.Obstetrics & Gynecology Physician1619139342
- Jeffrey Manley, M.D.Obstetrics & Gynecology Physician1700016961
Verify Brett Thomas Zimmerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U3763Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
104 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol29 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 MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.79
5 payments; by number, the most common kind was food and beverage; the largest payer was Shield Therapeutics Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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 one group practice
- Hood Medical GroupGranbury, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brett Thomas Zimmerman among 3,524 obstetrics & gynecology physician records in Texas
Brett Thomas Zimmerman, DO is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1997 · median 2005 among the 2,093 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 obstetrics & gynecology physician records list a practice address in Granbury
They are 8 of the 571 NPPES records with a practice address in Granbury, and 3,524 obstetrics & gynecology physician records in Texas.
All 3,524 in Texas → Every provider in Granbury → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Kira Butler, MDGranbury, TX 760481487683066
- Donald Howser, M.D.Granbury, TX 760481750389425
- Sarah Jordan, M.D.Granbury, TX 760481619139342
- Jeffrey Manley, M.D.Granbury, TX 760481700016961
- Michelle Stegenga, D.O.Granbury, TX 760481700104650
- Misty Vandever, M.D.Granbury, TX 760481851559736
- Katelyn OdonnellGranbury, TX 760491699310912
- Julia Flowers, MDGrapevine, TX 760511669433140
Common questions
What is Brett Thomas Zimmerman, DO's NPI number?
Brett Thomas Zimmerman, DO's National Provider Identifier (NPI) is 1770576571, issued on Aug 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Brett Thomas Zimmerman, DO located?
The NPPES record lists a practice address at 1212 Medical Plaza CT, Granbury, TX, 76048. Phone: (817) 279-1776. Providers update this record themselves, so call before visiting.
How can I verify Brett Thomas Zimmerman, DO's license?
NPPES lists Texas license number U3763, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brett Thomas Zimmerman, DO prescribe under Medicare Part D?
In 2024, Brett Thomas Zimmerman, DO had 104 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Brett Thomas Zimmerman, DO's MIPS final score?
The 2023 MIPS final score is 90.8 of 100. 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.