Merritt G. Davis, Jr, D.O.
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · San Antonio, TX
Merritt G. Davis, Jr, D.O. is an undersea and hyperbaric medicine (emergency medicine) physician with a practice address in San Antonio, Texas, and NPI 1407963499, issued on Aug 24, 2006. Check the license (Texas J4766, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Merritt G. Davis, Jr
- Credential
- D.O.
- Primary taxonomy
- Undersea and Hyperbaric Medicine (Emergency Medicine) Physician 207PE0005X
- License number
- J4766 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4502 Medical Dr, San Antonio, TX 78229
- Phone
- (210) 358-4320
- Enumerated
- Aug 24, 2006
- Record last updated
- Sep 27, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (210) 358-4806
- Medicaid ID
- 116151505 TX
- Entity
- Type 1 · individual
8 nearest undersea and hyperbaric medicine (emergency medicine) physician records → All 26 in Texas → Look up another NPI →
Also registered at 4502 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ayham AbdelAnesthesiology Physician1467147496
- Ali Abedi, M.D.Pulmonary Disease Physician1346566312
- Jordan Abel, M.D.Infectious Disease Physician1417273301
- Aesha Aboueisha, MDHospitalist Physician1225527815
- Seena Abraham, MDFamily Medicine Physician1306338561
Verify Merritt G. Davis, Jr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J4766Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average undersea and hyperbaric medicine (emergency medicine) physician in 2024
11 Medicare Part D claims, against an average of 374 among the 112 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Merritt G. Davis, Jr among 26 undersea and hyperbaric medicine (emergency medicine) physician records in Texas
Merritt G. Davis, Jr, D.O. is one of 26 undersea and hyperbaric medicine (emergency medicine) physician records with a practice address in Texas. 62% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 35% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2013 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0005X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers in Texas
There are 26 undersea and hyperbaric medicine (emergency medicine) physician records in Texas.
All 26 in Texas → Every provider in San Antonio → Undersea and Hyperbaric Medicine (Emergency Medicine) Physician nationwide →
The 8 undersea and hyperbaric medicine (emergency medicine) physician records with the nearest ZIP codes
- Rasa Silenas, M.D.San Antonio, TX 782291457404360
- Pablo Medina, M.D.Jbsa Fort Sam Houston, TX 782341689841876
- Robert Michaelson, D.O.San Antonio, TX 782241649258971
- Joseph Pendon, M.D.San Antonio, TX 782071750344321
- Khan Shirani, MD, MS, MPH, MBASan Antonio, TX 782051518135904
- Daniel DoucetCorpus Christi, TX 784041235157314
- Allyson Larkin, MDCorpus Christi, TX 784041184697708
- Jose Rodriguez, MDMcAllen, TX 785031346655669
Common questions
What is Merritt G. Davis, Jr, D.O.'s NPI number?
Merritt G. Davis, Jr, D.O.'s National Provider Identifier (NPI) is 1407963499, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Merritt G. Davis, Jr, D.O. located?
The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-4320. Providers update this record themselves, so call before visiting.
How can I verify Merritt G. Davis, Jr, D.O.'s license?
NPPES lists Texas license number J4766, 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 Merritt G. Davis, Jr, D.O. prescribe under Medicare Part D?
In 2024, Merritt G. Davis, Jr, D.O. had 11 Medicare Part D claims; the average among undersea and hyperbaric medicine (emergency medicine) physician prescribers was 374. 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.