Charles John Lostak, D.O.
Gastroenterology Physician · Dallas, TX
Charles John Lostak, D.O. is a gastroenterology physician with a practice address in Dallas, Texas, and NPI 1477549913, issued on Sep 20, 2005. Check the license (Texas H0576, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles John Lostak
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- H0576 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3450 W Wheatland RD, Dallas, TX 75237
- Phone
- (214) 948-8856
- Enumerated
- Sep 20, 2005
- Record last updated
- Nov 17, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (214) 948-5516
- Medicaid ID
- 172179701 TX
- Medicare enrollment
- Enrolled (PECOS I20040922000177); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 3450 W Wheatland RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles John Lostak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H0576Check 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% more Medicare Part D claims than the average gastroenterology physician in 2024
1,599 Medicare Part D claims for 552 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Pantoprazole Sodium596 claims
- Clenpiq163 claims
- Omeprazole163 claims
- Famotidine127 claims
- Sucralfate73 claims
- Linzess58 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.
Industry payments in 2024: $1,167.88
69 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- MedhealthDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles John Lostak among 1,478 gastroenterology physician records in Texas
Charles John Lostak, D.O. is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1985 · median 2003 among the 1,175 with a school on file
- Record last updated2011 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in Dallas → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Nabeel Koro, M.D.Dallas, TX 752371467609362
- Randal Macurak, M.D.Dallas, TX 752371861451502
- Rathan Reddy, M.D.Dallas, TX 752371912346057
- Walter Young, M.D.Dallas, TX 752371356301055
- Indira Bhavsar-Burke, MDDallas, TX 752351265894810
- Vibhu Chittajallu, MDDallas, TX 752351376049916
- Pooja Dharwadkar, MDDallas, TX 752351952720450
- Joshua Immergluck, MDDallas, TX 752351043713845
Common questions
What is Charles John Lostak, D.O.'s NPI number?
Charles John Lostak, D.O.'s National Provider Identifier (NPI) is 1477549913, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles John Lostak, D.O. located?
The NPPES record lists a practice address at 3450 W Wheatland RD, Dallas, TX, 75237. Phone: (214) 948-8856. Providers update this record themselves, so call before visiting.
How can I verify Charles John Lostak, D.O.'s license?
NPPES lists Texas license number H0576, 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 John Lostak, D.O. prescribe under Medicare Part D?
In 2024, Charles John Lostak, D.O. had 1,599 Medicare Part D claims for 552 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.