Heidi Christine Knowles, MD
Emergency Medicine Physician · Palestine, TX
Heidi Christine Knowles, MD is an emergency medicine physician with a practice address in Palestine, Texas, and NPI 1023050440, issued on Jun 11, 2006. Check the license (Texas M3818, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Heidi Christine Knowles
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- M3818 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2900 S Loop 256, Palestine, TX 75801
- Phone
- (903) 731-1144
- Enumerated
- Jun 11, 2006
- Record last updated
- Apr 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 180628301 TX
- Medicare enrollment
- Enrolled (PECOS I20060816000422); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2003
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 2900 S Loop 256
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heidi Christine Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M3818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average emergency medicine physician in 2024
24 Medicare Part D claims for 21 beneficiaries, against an average of 226 among the 54,106 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.
Bills Medicare through 3 group practices
- Ies ER Oklahoma LLCMuskogee, OK
- Integrative Emergency Services Physician Group PAFort Worth, TX
- Southlake Emergicare PLLCSouthlake, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heidi Christine Knowles among 4,885 emergency medicine physician records in Texas
Heidi Christine Knowles, 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 fileYes · 57% of these records are
- Graduated2003 · median 2013 among the 2,779 with a school on file
- 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).
5 emergency medicine physician records list a practice address in Palestine
They are 5 of the 353 NPPES records with a practice address in Palestine, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Palestine → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Benjamin Constante, M.D.Palestine, TX 758011811951676
- Chad Crystal, M.D.Palestine, TX 758011649234618
- Sunao Gilbert, M.D.Palestine, TX 758011699706127
- George Schroeder, MDPalestine, TX 758011043263437
- Kimberly Vogel, DOQuitman, TX 757831689691255
- John Burnett, MDCrockett, TX 758351437177052
- Thomas Curtis, MDJacksonville, TX 757661548203987
- Gary Smith, MDJacksonville, TX 757661861434771
Common questions
What is Heidi Christine Knowles, MD's NPI number?
Heidi Christine Knowles, MD's National Provider Identifier (NPI) is 1023050440, issued on Jun 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Christine Knowles, MD located?
The NPPES record lists a practice address at 2900 S Loop 256, Palestine, TX, 75801. Phone: (903) 731-1144. Providers update this record themselves, so call before visiting.
How can I verify Heidi Christine Knowles, MD's license?
NPPES lists Texas license number M3818, 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 Heidi Christine Knowles, MD prescribe under Medicare Part D?
In 2024, Heidi Christine Knowles, MD had 24 Medicare Part D claims for 21 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.