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SETH CLARK
NPI 1801208798
Internal Medicine - Addiction Medicine in Providence, RI

Active since May 27, 2014PECOS EnrolledAccepts Medicare Assignment
200 CORLISS ST, PROVIDENCE, RI 02904(401) 606-8530(401) 606-8549 Get Directions Write a Review

NPPES record last updated: June 24, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 24, 2025, May 13, 2021, Jul 22, 2019 and 2 more (5 updates tracked since 2017).

About Seth Clark NPPES

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

SETH CLARK (NPI 1801208798) is an individual addiction medicine provider in Providence, Rhode Island, licensed in Rhode Island (MD15837) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, is affiliated with Rhode Island Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1801208798
Entity TypeIndividualMale
Primary Taxonomy207RA0401X
Provider Legal NameSETH CLARK
Location Address200 CORLISS STProvidence, RI 02904
Mailing Address117 Ellenfield St Ste 101Providence, RI 02905-4513 · (401) 444-6779 · Fax (401) 444-6912
Phone(401) 606-8530
Fax(401) 606-8549
Sole ProprietorYes
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 2014
Enumeration DateMay 27, 2014
Last NPPES UpdateJune 24, 20255 updates tracked since enumeration
NPPES CertifiedJune 24, 2025
✔ NPI 1801208798 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RA0401X
License✔ Licensed in RI · MD15837
Definition
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD15837 (RI)
200 CORLISS ST, Providence, RI 02904
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1593 Eddy StProvidence, RI 02903-4923 · Phone (401) 444-4741 · Fax (401) 444-4445
Location 2200 Corliss StProvidence, RI 02904 · Phone (401) 606-8530 · Fax (401) 606-8549
Location 31052 Park AveCranston, RI 02910-3225 · Phone (401) 461-5056

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

Seth Clark 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 ID3870710213
PECOS Enrollment IDI20170626001451
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 Reassignments

3

Medicare enrollment records show Seth Clark reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lifespan Physician Group, Inc.
2.2 mi
Psychiatry
593 EDDY STREET
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 315 clinicians in this Medicare group
NPI 1548506793 (401) 444-7442
Rhode Island Hospital
2.2 mi
Multi-Specialty
593 EDDY ST
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 358 clinicians in this Medicare group
NPI 1154537520 (401) 444-6905
Gateway Healthcare Inc
3.1 mi
Mental Health (Including Community Mental Health Center)
101-103 BACON ST
Pawtucket, RI 02860
  • Reassigned Medicare billing, Rhode Island enrollment
  • 150 clinicians in this Medicare group
NPI 1821078932 (401) 722-3560

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

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
13 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Rhode Island Hospital

Acute Care Hospitals · Providence, RI
3/5 CMS rating
OwnershipTribal
CMS Certification Number410007
Location593 Eddy StreetProvidence, RI 02903 · Providence County
Emergency services

The Miriam Hospital

Acute Care Hospitals · Providence, RI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410012
Location164 Summit AvenueProvidence, RI 02906 · Providence County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02904 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
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
Most-billed visit code 99214
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 2

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

KELSEY COLETTA LICSW, LCDP
Counselor (Addiction (Substance Use Disorder))
200 CORLISS ST
PROVIDENCE, RI 02904
Providence County (401) 606-8530
DR. PRACHI BHUPTANI PHD
Psychologist (Clinical)
200 CORLISS ST
PROVIDENCE, RI 02904
Providence County (401) 606-8530

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Seth Clark's NPI number?

The NPI number for Seth Clark is 1801208798. It was assigned to this individual provider in the NPPES registry on May 27, 2014.

Where is Seth Clark located?

Seth Clark practices at 200 Corliss St, Providence, RI 02904. The listed phone number is (401) 606-8530.

What is Seth Clark's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Addiction Medicine, with taxonomy code 207RA0401X.

Is Seth Clark enrolled in Medicare?

Yes. Seth Clark is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Seth Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seth Clark reassigns Medicare benefits to 3 organizations: Lifespan Physician Group, Inc. (Providence, RI), Rhode Island Hospital (Providence, RI) and Gateway Healthcare Inc (Pawtucket, RI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Seth Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Seth Clark affiliated with any hospitals?

According to CMS data, Seth Clark is affiliated with Rhode Island Hospital and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Seth Clark was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.