NPPES file of Aug 9, 2026

Mark I. Frankel, MD, PHD

Geriatric Psychiatry Physician · Wellesley, MA

Mark I. Frankel, MD, PHD is a geriatric psychiatry physician with a practice address in Wellesley, Massachusetts, and NPI 1649306077, issued on Feb 27, 2007. Check the license (Massachusetts 234681, as entered in NPPES) 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
1649306077
Name
Mark I. Frankel
Credential
MD, PHD
Primary taxonomy
Geriatric Psychiatry Physician 2084P0805X
License numbers
234681 MA
047980 CT
Self-reported in NPPES; status is on the state search
Practice location
148 Linden St Ste 109, Wellesley, MA 02482
Phone
(917) 575-1641
Enumerated
Feb 27, 2007
Record last updated
Mar 1, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(781) 489-5476
Medicare enrollment
Enrolled (PECOS I20121030000368); may accept Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2004
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 Mark I. Frankel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 234681
    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
Open the Massachusetts license search

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35% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024

971 Medicare Part D claims for 77 beneficiaries, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 27 claims were for opioids.

  1. Mark Frankel971
  2. Specialty average1,485

Most prescribed

  1. Escitalopram Oxalate72 claims
  2. Sertraline Hcl59 claims
  3. Duloxetine Hcl51 claims
  4. Fluoxetine Hcl44 claims
  5. Gabapentin43 claims
  6. Mirtazapine42 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.

Mark I. Frankel among 45 geriatric psychiatry physician records in Massachusetts

Mark I. Frankel, MD, PHD is one of 45 geriatric psychiatry physician records with a practice address in Massachusetts. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 64% of them.

  • NPI issued2007 · 64% of these records are older, 24% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2004 · median 1990 among the 19 with a school on file
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0805X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Psychiatry Physician providers in Massachusetts

There are 45 geriatric psychiatry physician records in Massachusetts.

The 8 geriatric psychiatry physician records with the nearest ZIP codes

  1. Aaron Koenig, M.D.Wellesley, MA 024811629384995
  2. Brent Forester, M.D.Belmont, MA 024781649239716
  3. Saeed Hashem, MDBelmont, MA 024781538690011
  4. Hyun Duk Yang, M.D., PH.D.Belmont, MA 024781093021198
  5. Louis Nemser, MDNeedham, MA 024921902895857
  6. Katharine Wolf, MDWatertown, MA 024721619939287
  7. Bruce Kaster, MDNeedham, MA 024941346281961
  8. Barry Klegman, M.D.Newton, MA 024681053396945

Common questions

What is Mark I. Frankel, MD, PHD's NPI number?

Mark I. Frankel, MD, PHD's National Provider Identifier (NPI) is 1649306077, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark I. Frankel, MD, PHD located?

The NPPES record lists a practice address at 148 Linden St Ste 109, Wellesley, MA, 02482. Phone: (917) 575-1641. Providers update this record themselves, so call before visiting.

How can I verify Mark I. Frankel, MD, PHD's license?

NPPES lists Massachusetts license number 234681, as entered by the provider. 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 Mark I. Frankel, MD, PHD prescribe under Medicare Part D?

In 2024, Mark I. Frankel, MD, PHD had 971 Medicare Part D claims for 77 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.