William S. Cook, M.D.
Geriatric Psychiatry Physician · Jackson, MS
William S. Cook, M.D. is a geriatric psychiatry physician with a practice address in Jackson, Mississippi, and NPI 1356440721, issued on Sep 22, 2006. Check the license (Mississippi 10170, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- William S. Cook
- Credential
- M.D.
- Primary taxonomy
- Geriatric Psychiatry Physician 2084P0805X
- License number
- 10170 MS
Self-reported in NPPES; status is on the state search - Practice location
- 4500 I 55 N, Jackson, MS 39211
- Phone
- (601) 366-3660
- Enumerated
- Sep 22, 2006
- Record last updated
- Oct 13, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (601) 366-0636
- Entity
- Type 1 · individual
1 nearest geriatric psychiatry physician record → All 2 in Mississippi → Look up another NPI →
Also registered at 4500 I 55 N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jamie Austin, OTR/LOccupational Therapist1023259322
- Kristine Beattie, M.S., CCC-SLPSpeech-Language Pathologist1679851877
- Sherry Bouldin, LPCProfessional Counselor1053784918
- Terri Coalter, LCSW, BCDClinical Social Worker1801048780
- Rica Gray, LPC, NCC, CRCProfessional Counselor1952609554
Verify William S. Cook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 10170Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024
847 Medicare Part D claims for 30 beneficiaries, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Clonazepam97 claims
- Alprazolam76 claims
- Lamotrigine64 claims
- Venlafaxine Hcl Er45 claims
- Dextroamphetamine-Amphetamine42 claims
- Fluoxetine Hcl35 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: $20.05
1 payment: food and beverage; the largest payer was Abiomed. The 200 providers of this specialty with any payment received $2,189.26 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.
Geriatric Psychiatry Physician providers in Mississippi
There are 2 geriatric psychiatry physician records in Mississippi.
All 2 in Mississippi → Every provider in Jackson → Geriatric Psychiatry Physician nationwide →
The 1 geriatric psychiatry physician record with the nearest ZIP codes
- William Clark, M.D.Laurel, MS 394401518987478
Common questions
What is William S. Cook, M.D.'s NPI number?
William S. Cook, M.D.'s National Provider Identifier (NPI) is 1356440721, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William S. Cook, M.D. located?
The NPPES record lists a practice address at 4500 I 55 N, Jackson, MS, 39211. Phone: (601) 366-3660. Providers update this record themselves, so call before visiting.
How can I verify William S. Cook, M.D.'s license?
NPPES lists Mississippi license number 10170, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William S. Cook, M.D. prescribe under Medicare Part D?
In 2024, William S. Cook, M.D. had 847 Medicare Part D claims for 30 beneficiaries; the average among geriatric psychiatry physician prescribers was 1,485. 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.