NPPES file of Aug 9, 2026

Ajay Marken, M.D

Child & Adolescent Psychiatry Physician · Boston, MA

Ajay Marken, M.D is a child & adolescent psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1578918223, issued on May 2, 2016. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578918223
Name
Ajay Marken
Credential
M.D
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
296534 NY
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St # 6A, Boston, MA 02114
Phone
(675) 313-6695
Enumerated
May 2, 2016
Record last updated
Jul 26, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220811000500); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2016
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ajay Marken in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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
Open the Massachusetts license search

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77% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

118 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Ajay Marken118
  2. Specialty average504

Most prescribed

  1. Aripiprazole22 claims
  2. Prazosin Hcl17 claims
  3. Trazodone Hcl17 claims
  4. Bupropion Xl14 claims
  5. Fluvoxamine Maleate14 claims
  6. Escitalopram Oxalate13 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.

One hospital affiliation

  1. Nyu Langone HospitalsNew York, NY · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ajay Marken among 336 child & adolescent psychiatry physician records in Massachusetts

Ajay Marken, M.D is one of 336 child & adolescent psychiatry physician records with a practice address in Massachusetts. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 82% of them.

  • NPI issued2016 · 82% of these records are older, 14% newer
  • In a Medicare fileYes · 51% of these records are
  • In the CMS Doctors and Clinicians fileYes · 29% of these records are
  • Graduated2016 · median 2001 among the 98 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Massachusetts

There are 336 child & adolescent psychiatry physician records in Massachusetts.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Annah Abrams, MDBoston, MA 021141689665234
  2. Donald Condie, MDBoston, MA 021141366417347
  3. Marcus Favero, MDBoston, MA 021141730152463
  4. John Julian, MDBoston, MA 021141013998483
  5. Ranna Parekh, MDBoston, MA 021141003840190
  6. Elizabeth Pinsky, M.D.Boston, MA 021141437286895
  7. Lisa Price, MDBoston, MA 021141902810435
  8. Jefferson Prince, MDBoston, MA 021141891714804

Common questions

What is Ajay Marken, M.D's NPI number?

Ajay Marken, M.D's National Provider Identifier (NPI) is 1578918223, issued on May 2, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Ajay Marken, M.D located?

The NPPES record lists a practice address at 55 Fruit St # 6A, Boston, MA, 02114. Phone: (675) 313-6695. Providers update this record themselves, so call before visiting.

How can I verify Ajay Marken, M.D's license?

Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ajay Marken, M.D prescribe under Medicare Part D?

In 2024, Ajay Marken, M.D had 118 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. 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.