NPPES file of Aug 9, 2026

Marie Diane Cooper, PH.D.

Speech-Language Pathologist · Upper Marlboro, MD

Marie Diane Cooper, PH.D. is a speech-language pathologist with a practice address in Upper Marlboro, Maryland, and NPI 1659536506, issued on Jul 21, 2008. Check the license (Maryland 01017829, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659536506
Name
Marie Diane Cooper
Credential
PH.D.
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
01017829 MD
Self-reported in NPPES; status is on the state search
Practice location
9308 Midland Turn, Upper Marlboro, MD 20772
Phone
(202) 386-7745
Enumerated
Jul 21, 2008
Record last updated
Jul 21, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(301) 868-6212
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Marie Diane Cooper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 01017829
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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Marie Diane Cooper among 4,509 speech-language pathologist records in Maryland

Marie Diane Cooper, PH.D. is one of 4,509 speech-language pathologist records with a practice address in Maryland. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 10% of them.

  • NPI issued2008 · 10% of these records are older, 88% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2008 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 speech-language pathologist records list a practice address in Upper Marlboro

They are 39 of the 1,638 NPPES records with a practice address in Upper Marlboro, and 4,509 speech-language pathologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 speech-language pathologist records with the nearest ZIP codes

  1. Dominique ClarkUpper Marlboro, MD 207721265678502
  2. Kelsey Davis-LeeUpper Marlboro, MD 207721720506421
  3. Helen Dowtin, CCC-SLPUpper Marlboro, MD 207721982034344
  4. Bettina Jackson, MS CCC-SLPUpper Marlboro, MD 207721497739395
  5. Tinita Kearney, PH.D., CCC-SLP/LUpper Marlboro, MD 207721548644156
  6. Jadae Lawson, M.S CCC-SLPUpper Marlboro, MD 207721326487356
  7. Malika Matthews, M.ED. CCC-SLPUpper Marlboro, MD 207721245493576
  8. Jacqueline Schaade, M.A. CCC-SLPUpper Marlboro, MD 207721790225381

Common questions

What is Marie Diane Cooper, PH.D.'s NPI number?

Marie Diane Cooper, PH.D.'s National Provider Identifier (NPI) is 1659536506, issued on Jul 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marie Diane Cooper, PH.D. located?

The NPPES record lists a practice address at 9308 Midland Turn, Upper Marlboro, MD, 20772. Phone: (202) 386-7745. Providers update this record themselves, so call before visiting.

How can I verify Marie Diane Cooper, PH.D.'s license?

NPPES lists Maryland license number 01017829, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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. 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.