John Walter Meyer, M.D.
Family Medicine Physician · Castroville, TX
John Walter Meyer, M.D. is a family medicine physician with a practice address in Castroville, Texas, and NPI 1194724625, issued on Jul 18, 2005. Check the license (Texas E3732, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Walter Meyer
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- E3732 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1051 US Highway 90 E, Castroville, TX 78009
- Phone
- (830) 931-3336
- Enumerated
- Jul 18, 2005
- Record last updated
- Jun 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (830) 931-3508
- Medicaid ID
- 133488009 TX
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 1051 US Highway 90 E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Aken, APRN, BC, FNP-LPANurse Practitioner1497746309
- Diana Aluyen, MDHospitalist Physician1801230487
- Heather Cobb, P.A.Physician Assistant1063821130
- Rodrigo CrespoInternal Medicine Physician1609854090
- Emily Meyer, M.D.Family Medicine Physician1558459446
- Gaspar Rosario, PAPhysician Assistant1245481308
Verify John Walter Meyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E3732Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average family medicine physician in 2024
593 Medicare Part D claims for 82 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Metformin Hcl54 claims
- Levothyroxine Sodium37 claims
- Atorvastatin Calcium33 claims
- Simvastatin25 claims
- Losartan Potassium22 claims
- Ezetimibe19 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.
John Walter Meyer among 11,119 family medicine physician records in Texas
John Walter Meyer, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2018 · 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).
7 family medicine physician records list a practice address in Castroville
They are 7 of the 88 NPPES records with a practice address in Castroville, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Castroville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Max Best, M.D.Castroville, TX 780091497786347
- Ann Black, MDCastroville, TX 780091750329801
- Emily Meyer, M.D.Castroville, TX 780091558459446
- Mary Nguyen, M.D.Castroville, TX 780091356339717
- Bobby Pittman, M.D.Castroville, TX 780091053411546
- Lloyd Vanwinkle, MDCastroville, TX 780091306833173
- Bryan Davis, D.O.Center Point, TX 780101578790473
- Lydia Avila, M.D.Boerne, TX 780061982825964
Common questions
What is John Walter Meyer, M.D.'s NPI number?
John Walter Meyer, M.D.'s National Provider Identifier (NPI) is 1194724625, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Walter Meyer, M.D. located?
The NPPES record lists a practice address at 1051 US Highway 90 E, Castroville, TX, 78009. Phone: (830) 931-3336. Providers update this record themselves, so call before visiting.
How can I verify John Walter Meyer, M.D.'s license?
NPPES lists Texas license number E3732, 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 John Walter Meyer, M.D. prescribe under Medicare Part D?
In 2024, John Walter Meyer, M.D. had 593 Medicare Part D claims for 82 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.