Joseph William Cook, M.D.
Internal Medicine Physician · Catonsville, MD
Joseph William Cook, M.D. is an internal medicine physician with a practice address in Catonsville, Maryland, and NPI 1124069257, issued on Jun 9, 2006. Check the license (Maryland D0044243, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Joseph William Cook
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0044243 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6501 Baltimore National Pike Ste D, Catonsville, MD 21228
- Phone
- (667) 234-2100
- Enumerated
- Jun 9, 2006
- Record last updated
- Apr 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (667) 234-2944
- Medicaid ID
- 645201900 MD
- Medicare enrollment
- Enrolled (PECOS I20080128000339); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 6501 Baltimore National Pike Ste D
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samantha Fine, FNP-CFamily Nurse Practitioner1528811163
- Thomas Ghiorzi, M.D.Internal Medicine Physician1750328753
- Sonia LeeNurse Practitioner1467017129
Verify Joseph William Cook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0044243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average internal medicine physician in 2024
5,560 Medicare Part D claims for 682 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 45 claims were for opioids.
Most prescribed
- Atorvastatin Calcium404 claims
- Amlodipine Besylate355 claims
- Lisinopril272 claims
- Losartan Potassium212 claims
- Levothyroxine Sodium207 claims
- Rosuvastatin Calcium200 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Seton Medical Group IncCatonsville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph William Cook among 3,904 internal medicine physician records in Maryland
Joseph William Cook, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1989 · median 2003 among the 2,445 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 internal medicine physician records list a practice address in Catonsville
They are 45 of the 1,023 NPPES records with a practice address in Catonsville, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Catonsville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deneen Bowlin, MDBaltimore, MD 212281134194939
- Myla Carpenter, MDBaltimore, MD 212281073588596
- Leduvina Cueto, M.D.Catonsville, MD 212281205807245
- William Gaver, MDCatonsville, MD 212281255319414
- David Herman, M.D.Baltimore, MD 212281881685030
- Glen Johnson, MDBaltimore, MD 212281730173675
- Lydia Jumamoy, MDBaltimore, MD 212281730164823
- Sanghee Lee, D.O.Catonsville, MD 212281003805243
Common questions
What is Joseph William Cook, M.D.'s NPI number?
Joseph William Cook, M.D.'s National Provider Identifier (NPI) is 1124069257, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph William Cook, M.D. located?
The NPPES record lists a practice address at 6501 Baltimore National Pike Ste D, Catonsville, MD, 21228. Phone: (667) 234-2100. Providers update this record themselves, so call before visiting.
How can I verify Joseph William Cook, M.D.'s license?
NPPES lists Maryland license number D0044243, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph William Cook, M.D. prescribe under Medicare Part D?
In 2024, Joseph William Cook, M.D. had 5,560 Medicare Part D claims for 682 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joseph William Cook, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.