Michael William, MD
Sleep Medicine (Internal Medicine) Physician · Frisco, TX
Michael William, MD is a sleep medicine (internal medicine) physician with a practice address in Frisco, Texas, and NPI 1669931440, issued on Mar 19, 2019. Check the license (Texas U2037, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael William
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- U2037 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2840 Legacy Dr Ste 400, Frisco, TX 75034
- Phone
- (469) 200-6100
- Enumerated
- Mar 19, 2019
- Record last updated
- Mar 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20230908002537); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 56 in Texas → Look up another NPI →
Also registered at 2840 Legacy Dr Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael William in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U2037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
167 Medicare Part D claims for 37 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin13 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: $61.06
3 payments; by number, the most common kind was food and beverage; the largest payer was Harmony Biosciences LLC. The 664 providers of this specialty with any payment received $3,724.37 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
- Inspire Health PLLCFrisco, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael William among 56 sleep medicine (internal medicine) physician records in Texas
Michael William, MD is one of 56 sleep medicine (internal medicine) physician records with a practice address in Texas. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 93% of them.
- NPI issued2019 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2017 · median 2000 among the 38 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Texas
There are 56 sleep medicine (internal medicine) physician records in Texas.
All 56 in Texas → Every provider in Frisco → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Marie Dibra, MDFrisco, TX 750341659661924
- Joyce Shotwell, MDFrisco, TX 750341770586331
- Rajdeep Kakar, M.D., M.P.H.Plano, TX 750241073530986
- Tang Kuang, MDAllen, TX 750131417901224
- Ravindra Chandrashekhar, M.D.Carrollton, TX 750071245422955
- Sonya Merrill, MD, PHDDallas, TX 752301316954092
- Nabeel Farah, M.D.Dallas, TX 752311255533501
- Andrew Jamieson, M.D.Dallas, TX 752311710980362
Common questions
What is Michael William, MD's NPI number?
Michael William, MD's National Provider Identifier (NPI) is 1669931440, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Michael William, MD located?
The NPPES record lists a practice address at 2840 Legacy Dr Ste 400, Frisco, TX, 75034. Phone: (469) 200-6100. Providers update this record themselves, so call before visiting.
How can I verify Michael William, MD's license?
NPPES lists Texas license number U2037, 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 Michael William, MD prescribe under Medicare Part D?
In 2024, Michael William, MD had 167 Medicare Part D claims for 37 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.