Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK ZIMMERMAN MD
NPI 1508842857
Psychiatry & Neurology - Psychiatry in Cranston, RI

Q: What is Mark Zimmerman's NPI number?

The NPI number for Mark Zimmerman is 1508842857. It was assigned to this individual provider in the NPPES registry on December 19, 2005.

Q: What is Mark Zimmerman's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Mark Zimmerman was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 19, 2005PECOS Enrolled

1170 PONTIAC AVE STE 100, CRANSTON, RI 02920(401) 343-4343 Get Directions Write a Review

NPPES record last updated: October 29, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 29, 2026, Oct 7, 2025 (2 updates tracked since 2025).

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About Mark Zimmerman Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK ZIMMERMAN MD (NPI 1508842857) is an individual psychiatry provider in Cranston, Rhode Island, licensed in Rhode Island (MD08762) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Shelburne, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1508842857

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameMARK ZIMMERMANCredential: MD

Location Address1170 PONTIAC AVE STE 100Cranston, RI 02920-7944

Mailing Address1170 Pontiac Ave Ste 100Cranston, RI 02920-7944 · (401) 343-4343

Phone(401) 343-4343

Sole ProprietorNo

Medical School CMSOtherGraduated 1990

Enumeration DateDecember 19, 2005

Last NPPES UpdateOctober 29, 20262 updates tracked since enumeration

NPPES CertifiedOctober 29, 2026

✔ NPI 1508842857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in RI · MD08762

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1170 PONTIAC AVE STE 100, Cranston, RI 02920

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Secondary Practice Location 1

Location 1145 Pine Haven Shores Rd Ste 1191Shelburne, VT 05482-7821 · Phone (802) 899-0124 · Fax (855) 268-5333

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Zimmerman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4082665559

PECOS Enrollment IDI20050202000705, I20251006002668

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Zimmerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

South County Psychiatry LLC

Same address

Psychiatry

1170 PONTIAC AVE STE 100
Cranston, RI 02920

Reassigned Medicare billing, Rhode Island and Vermont enrollments
45 clinicians in this Medicare group

NPI 1003454034 (401) 343-4343

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

76 services20 patients

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

54 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02920 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$177.03 typical visit price

range $58.57 – $177.03

Typical copayment $44.25 (range $14.64 – $44.25)

Most-billed visit code 99205

Established Patient

$72.93 typical visit price

range $18.92 – $144.38

Typical copayment $18.23 (range $4.73 – $36.09)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SOUTH COUNTY PSYCHIATRY LLC

Psychiatry & Neurology (Psychiatry)