Raymond Arthur Fleischer, M.D.
Hospitalist Physician · San Antonio, TX
Raymond Arthur Fleischer, M.D. is a hospitalist physician with a practice address in San Antonio, Texas, and NPI 1558688895, issued on Apr 27, 2010. Check the license (Texas P6388, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Raymond Arthur Fleischer
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- P6388 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4502 Medical Dr, San Antonio, TX 78229
- Phone
- (210) 358-4000
- Enumerated
- Apr 27, 2010
- Record last updated
- Jun 26, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 321985901 TX
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,587 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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- Aesha Aboueisha, MDHospitalist Physician1225527815
- Seena Abraham, MDFamily Medicine Physician1306338561
Verify Raymond Arthur Fleischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P6388Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average hospitalist physician in 2024
458 Medicare Part D claims for 135 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 33 claims were for opioids.
Most prescribed
- Furosemide22 claims
- Atorvastatin Calcium21 claims
- Pantoprazole Sodium20 claims
- Metoprolol Tartrate15 claims
- Clopidogrel14 claims
- Eliquis14 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.
Raymond Arthur Fleischer among 1,587 hospitalist physician records in Texas
Raymond Arthur Fleischer, M.D. is one of 1,587 hospitalist physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 28% of them.
- NPI issued2010 · 28% of these records are older, 68% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 82% of these records are
- Record last updated2017 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Texas
There are 1,587 hospitalist physician records in Texas.
All 1,587 in Texas → Every provider in San Antonio → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Christine Andre, MDSan Antonio, TX 782291013928530
- Theodore Arevalo, MDSan Antonio, TX 782291922019447
- Gregory Bowling, MDSan Antonio, TX 782291275640245
- Andrea Darilek, MDSan Antonio, TX 782291053334904
- Sean Garcia, MDSan Antonio, TX 782291861509861
- Gustavo Medellin, MDSan Antonio, TX 782291871571968
- Jane O'Rorke, M.D.San Antonio, TX 782291669483541
- Raja Pathapati, M.D.San Antonio, TX 782291083669501
Common questions
What is Raymond Arthur Fleischer, M.D.'s NPI number?
Raymond Arthur Fleischer, M.D.'s National Provider Identifier (NPI) is 1558688895, issued on Apr 27, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Raymond Arthur Fleischer, M.D. located?
The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-4000. Providers update this record themselves, so call before visiting.
How can I verify Raymond Arthur Fleischer, M.D.'s license?
NPPES lists Texas license number P6388, 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 Raymond Arthur Fleischer, M.D. prescribe under Medicare Part D?
In 2024, Raymond Arthur Fleischer, M.D. had 458 Medicare Part D claims for 135 beneficiaries; the average among hospitalist physician prescribers was 521. 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.