Maggie Klein Gainer, MD
Family Medicine Physician · Fredericksburg, TX
Maggie Klein Gainer, MD is a family medicine physician with a practice address in Fredericksburg, Texas, and NPI 1477901346, issued on Jun 1, 2016. Check the license (Texas S2305, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Maggie Klein Gainer
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- S2305 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1308 S State Highway 16, Fredericksburg, TX 78624
- Phone
- (830) 997-2181
- Enumerated
- Jun 1, 2016
- Record last updated
- Nov 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (830) 997-4453
- Medicaid ID
- 408984901 TX
- Medicare enrollment
- Enrolled (PECOS I20190930003055); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 1308 S State Highway 16
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Taylor Works, MDFamily Medicine Physician1790421162
Verify Maggie Klein Gainer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S2305Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% more Medicare Part D claims than the average family medicine physician in 2024
6,678 Medicare Part D claims for 472 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 193 claims were for opioids.
Most prescribed
- Levothyroxine Sodium359 claims
- Atorvastatin Calcium305 claims
- Lisinopril217 claims
- Trazodone Hcl191 claims
- Losartan Potassium186 claims
- Rosuvastatin Calcium182 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.
Industry payments in 2024: $24.21
1 payment: food and beverage; the largest payer was Scpharmaceuticals Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Fredericksburg Clinic PLLCFredericksburg, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maggie Klein Gainer among 11,119 family medicine physician records in Texas
Maggie Klein Gainer, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2016 · median 2004 among the 7,095 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 family medicine physician records list a practice address in Fredericksburg
They are 22 of the 331 NPPES records with a practice address in Fredericksburg, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Fredericksburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Cantu, M.D.Fredericksburg, TX 786241538145206
- Karen Cornett, MDFredericksburg, TX 786241376538223
- Rebecca Daley, D.O.Fredericksburg, TX 786241356348288
- Mark Eden, MDFredericksburg, TX 786241275528119
- Suzanne Ellison, MDFredericksburg, TX 786241285620211
- Yvonne Haug, M.D.Fredericksburg, TX 786241366427379
- Matthew Hoermann, MDFredericksburg, TX 786241790770634
- John Kothmann, M.D.Fredericksburg, TX 786241780624502
Common questions
What is Maggie Klein Gainer, MD's NPI number?
Maggie Klein Gainer, MD's National Provider Identifier (NPI) is 1477901346, issued on Jun 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Maggie Klein Gainer, MD located?
The NPPES record lists a practice address at 1308 S State Highway 16, Fredericksburg, TX, 78624. Phone: (830) 997-2181. Providers update this record themselves, so call before visiting.
How can I verify Maggie Klein Gainer, MD's license?
NPPES lists Texas license number S2305, 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 Maggie Klein Gainer, MD prescribe under Medicare Part D?
In 2024, Maggie Klein Gainer, MD had 6,678 Medicare Part D claims for 472 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.