William K. Drell, M.D.
Psychiatry Physician · Houston, TX
William K. Drell, M.D. is a psychiatry physician with a practice address in Houston, Texas, and NPI 1932184983, issued on Dec 13, 2005. Check the license (Texas G7055, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William K. Drell
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G7055 TX
Self-reported in NPPES; status is on the state search - Practice location
- 909 Frostwood Dr, Houston, TX 77024
- Phone
- (713) 464-4455
- Enumerated
- Dec 13, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (713) 464-3642
- Medicare enrollment
- Enrolled (PECOS I20110124000796); may accept Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 909 Frostwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Saeid Abedin, M.D.,Ophthalmology Physician1265470819
- Paula Allison, AUD.Audiologist1205834611
- Mehreen Ansari, M.P.H., R.D., L.DRegistered Dietitian1982901385
- Amy Azih, PA-CPhysician Assistant1497178529
- Bradley Beckman, MDDermatology Physician1720088461
- Dennis Brown, M.D.Neurology Physician1780742890
Verify William K. Drell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G7055Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average psychiatry physician in 2024
1,340 Medicare Part D claims for 114 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Clonazepam127 claims
- Bupropion Xl98 claims
- Escitalopram Oxalate94 claims
- Alprazolam81 claims
- Quetiapine Fumarate64 claims
- Trazodone Hcl59 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: $119.21
1 payment: food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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.
William K. Drell among 3,318 psychiatry physician records in Texas
William K. Drell, M.D. is one of 3,318 psychiatry physician records with a practice address in Texas. 72% 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, 95% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1983 · median 2006 among the 1,481 with a school on file
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Texas
There are 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in Houston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Sangeeta Awasthi, M.D.Houston, TX 770241679790950
- Rakesh Desai, M.D.Houston, TX 770241003897430
- Barry Gritz, M.D.Houston, TX 770241487635892
- Wanda Henao, M.D.Houston, TX 770241144379710
- Sara Holland, PMNPHouston, TX 770241992422166
- Bejoy John, MDHouston, TX 770241619285442
- Chizelle OnochieHouston, TX 770241750841409
- Aaron Peterson, DOHouston, TX 770241457545303
Common questions
What is William K. Drell, M.D.'s NPI number?
William K. Drell, M.D.'s National Provider Identifier (NPI) is 1932184983, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William K. Drell, M.D. located?
The NPPES record lists a practice address at 909 Frostwood Dr, Houston, TX, 77024. Phone: (713) 464-4455. Providers update this record themselves, so call before visiting.
How can I verify William K. Drell, M.D.'s license?
NPPES lists Texas license number G7055, 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 William K. Drell, M.D. prescribe under Medicare Part D?
In 2024, William K. Drell, M.D. had 1,340 Medicare Part D claims for 114 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.