Charles P. Singstad, M.D.
Emergency Medicine Physician · San Antonio, TX
Charles P. Singstad, M.D. is an emergency medicine physician with a practice address in San Antonio, Texas, and NPI 1467424069, issued on Feb 7, 2006. Check the license (Texas K4251, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles P. Singstad
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- K4251 TX
Self-reported in NPPES; status is on the state search - Practice location
- 111 Dallas St, San Antonio, TX 78205
- Phone
- (210) 614-0180
- Enumerated
- Feb 7, 2006
- Record last updated
- Sep 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (210) 615-7170
- Medicaid ID
- 031082303 TX
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 111 Dallas St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles P. Singstad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K4251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average emergency medicine physician in 2024
139 Medicare Part D claims for 109 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Cephalexin26 claims
- Acetaminophen-Codeine24 claims
- Prednisone18 claims
- Ondansetron Odt11 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.
Charles P. Singstad among 4,885 emergency medicine physician records in Texas
Charles P. Singstad, M.D. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 67% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2009 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
400 emergency medicine physician records list a practice address in San Antonio
They are 400 of the 37,749 NPPES records with a practice address in San Antonio, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in San Antonio → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jennifer Bradstreet, MDSan Antonio, TX 782051386653905
- Lance Brown, M.D.San Antonio, TX 782051114916061
- Kris Cameron, MDSan Antonio, TX 782051396764494
- Marcus Christopher, MDSan Antonio, TX 782051922096908
- James Davidson, MDSan Antonio, TX 782051629065438
- Byron Freemyer, M.D.San Antonio, TX 782051841280740
- Robert Hampton, M.D.San Antonio, TX 782051447244462
- Daren Hersh, M.D.San Antonio, TX 782051497729958
Common questions
What is Charles P. Singstad, M.D.'s NPI number?
Charles P. Singstad, M.D.'s National Provider Identifier (NPI) is 1467424069, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles P. Singstad, M.D. located?
The NPPES record lists a practice address at 111 Dallas St, San Antonio, TX, 78205. Phone: (210) 614-0180. Providers update this record themselves, so call before visiting.
How can I verify Charles P. Singstad, M.D.'s license?
NPPES lists Texas license number K4251, 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 Charles P. Singstad, M.D. prescribe under Medicare Part D?
In 2024, Charles P. Singstad, M.D. had 139 Medicare Part D claims for 109 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.