MARK ZIMMERMAN (MD) – Psychiatry Physician, NPI 1508842857
Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
304 PSYCHIATRY in RI
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Provider Addresses for MARK ZIMMERMAN (MD)
West River Center, 146, West River Street, Providence, Providence County, Rhode Island, 02904, United States
SUITE 11B
PROVIDENCE, RI 029042609
Phone: (401) 444-7442
Fax: (401) 444-7109
Type: Location
Rhode Island Hospital, 593, Eddy Street, Downtown, Providence, Providence County, Rhode Island, 02903, United States
POTTER 3
PROVIDENCE, RI 029034923
Phone: (401) 444-4318
Fax: (401) 444-6573
Type: Mailing
145 Pine Haven Shores Rd Ste 1191
Shelburne, VT 054827821
Phone: (802) 899-0124
Fax: (855) 268-5333
Type: Location
420 SCRABBLETOWN RD STE A
NORTH KINGSTOWN, RI 028523638
Phone: (401) 268-5333
Fax: (855) 268-5333
Type: Mailing
1170 PONTIAC AVE
CRANSTON, RI 029207944
Phone: (401) 500-0424
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 113 Open Payments records for all available years, with a total value of $107,686.
Total Amount is formed as General ($107,686) + Research ($0) + Ownership ($0) = $107,686.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) ($53,227).
Total Amount
$107,686
General + Research + Ownership
Payments
113
Total payment records
General Amount
$107,686
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $53,227 |
| Otsuka Pharmaceutical Co., Ltd. | $26,265 |
| Merck Sharp & Dohme LLC | $15,560 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $8,832 |
| Boehringer Ingelheim International GmbH | $2,908 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-10-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050202000705 | I | Psychiatry | RI | TBD |
| I20251006002668 | I | Psychiatry | VT | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 85 | 21 | $0 |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | 42 | 14 | $0 |
Insurance plans in this area (ZIP 02904)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CT | |
| Clinical Psychologist | RI | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | RI | |
| Nurse Practitioner | RI | |
| Nurse Practitioner | RI | |
| Clinical Psychologist | RI | |
| Psychiatry, Geriatric Psychiatry | RI | |
| Mental Health Counselor | RI | |
| Clinical Psychologist | RI |
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