Mark Zimmerman, MD
Psychiatry Physician · Cranston, RI
Mark Zimmerman, MD is a psychiatry physician with a practice address in Cranston, Rhode Island, and NPI 1508842857, issued on Dec 19, 2005. Check the license (Rhode Island MD08762, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Mark Zimmerman
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD08762 RI
Self-reported in NPPES; status is on the state search - Practice location
- 1170 Pontiac Ave, Cranston, RI 02920
- Phone
- (401) 500-0424
- Enumerated
- Dec 19, 2005
- Record last updated
- Oct 7, 2025
- Medicaid ID
- 9006816 RI
- Medicare enrollment
- Enrolled (PECOS I20050202000705); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 383 in Rhode Island → Look up another NPI →
Also registered at 1170 Pontiac Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Talya Benoff, MDPsychiatry Physician1972824522
- Elizabeth Byrnes, LMHCMental Health Counselor1407543820
- Kristin Davidoff, M.A.Clinical Psychologist1447626023
- Emily Debold, LMHCMental Health Counselor1275106551
- Beth Dufour, APRN-BCAcute Care Nurse Practitioner1083255509
- Laura Filippelli-TedeschiRegistered Dietitian1871219196
Verify Mark Zimmerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD08762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average psychiatry physician in 2024
457 Medicare Part D claims for 43 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam67 claims
- Bupropion Xl41 claims
- Duloxetine Hcl40 claims
- Lorazepam27 claims
- Bupropion Hcl Sr24 claims
- Citalopram Hbr23 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: $67,775.61
63 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 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.
Bills Medicare through one group practice
- South County Psychiatry LLCCranston, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Zimmerman among 383 psychiatry physician records in Rhode Island
Mark Zimmerman, MD is one of 383 psychiatry physician records with a practice address in Rhode Island. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1990 · median 2005 among the 172 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 psychiatry physician records list a practice address in Cranston
They are 21 of the 1,348 NPPES records with a practice address in Cranston, and 383 psychiatry physician records in Rhode Island.
All 383 in Rhode Island → Every provider in Cranston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Heather Abrahams, MDCranston, RI 029201154346500
- Talya Benoff, MDCranston, RI 029201972824522
- Robert Bessette, D.O.Cranston, RI 029201508821562
- Wajahat Faheem, MDCranston, RI 029201053323691
- Bruce Fischer, MDCranston, RI 029201881753028
- Maria Gonzalez, MDCranston, RI 029201114982857
- Gene Jacobs, D.O.Cranston, RI 029201699743245
- Angela Lacombe, DOCranston, RI 029201285772459
Common questions
What is Mark Zimmerman, MD's NPI number?
Mark Zimmerman, MD's National Provider Identifier (NPI) is 1508842857, issued on Dec 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Zimmerman, MD located?
The NPPES record lists a practice address at 1170 Pontiac Ave, Cranston, RI, 02920. Phone: (401) 500-0424. Providers update this record themselves, so call before visiting.
How can I verify Mark Zimmerman, MD's license?
NPPES lists Rhode Island license number MD08762, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Zimmerman, MD prescribe under Medicare Part D?
In 2024, Mark Zimmerman, MD had 457 Medicare Part D claims for 43 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.