Theresa M. Olfson, MD
Emergency Medicine Physician · Allen, TX
Theresa M. Olfson, MD is an emergency medicine physician with a practice address in Allen, Texas, and NPI 1578500054, issued on Jun 1, 2006. Check the license (Texas K6199, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Theresa M. Olfson
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- K6199 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1105 Central Expy N, Allen, TX 75013
- Phone
- (972) 747-6552
- Enumerated
- Jun 1, 2006
- Record last updated
- Feb 11, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 030149101 TX
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 1105 Central Expy N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Judith Anderson, M.D.Neonatal-Perinatal Medicine Physician1649236605
- Marian Bednar, MDEmergency Medicine Physician1184663346
- Brittani Bell, CSTSurgical Physician Assistant1487101572
Verify Theresa M. Olfson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K6199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average emergency medicine physician in 2024
137 Medicare Part D claims for 95 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Ondansetron Odt24 claims
- Hydrocodone-Acetaminophen22 claims
- Acetaminophen-Codeine11 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.
Theresa M. Olfson among 4,885 emergency medicine physician records in Texas
Theresa M. Olfson, MD 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 updated2008 · 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).
19 emergency medicine physician records list a practice address in Allen
They are 19 of the 1,770 NPPES records with a practice address in Allen, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Allen → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Yvonne Barbee, DOAllen, TX 750131851560122
- Marian Bednar, MDAllen, TX 750131184663346
- Ion ChuangAllen, TX 750131821034448
- John Cox, MDAllen, TX 750131992745558
- Joseph Fagner, MDAllen, TX 750131316051782
- Sean Fleming, MDAllen, TX 750131992745517
- Jonathan Franklin, MDAllen, TX 750131326088956
- Stephan Kramer, DOAllen, TX 750131265475453
Common questions
What is Theresa M. Olfson, MD's NPI number?
Theresa M. Olfson, MD's National Provider Identifier (NPI) is 1578500054, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theresa M. Olfson, MD located?
The NPPES record lists a practice address at 1105 Central Expy N, Allen, TX, 75013. Phone: (972) 747-6552. Providers update this record themselves, so call before visiting.
How can I verify Theresa M. Olfson, MD's license?
NPPES lists Texas license number K6199, 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 Theresa M. Olfson, MD prescribe under Medicare Part D?
In 2024, Theresa M. Olfson, MD had 137 Medicare Part D claims for 95 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.