DR. JAMES LEIGHTON SMYTHE (MD) – Hematology & Oncology Physician, NPI 1821074386

DR. JAMES LEIGHTON SMYTHE (MD) is a healthcare provider. based in Providence, Rhode Island. specializing in HEMATOLOGY/ONCOLOGY, INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. MD06222 (RI). The NPI Number for DR. JAMES LEIGHTON SMYTHE (MD) is 1821074386

Main info

Male
49 Years Of Experience
Accepts Medicare Assignment
Name
DR. JAMES LEIGHTON SMYTHE (MD)
NPI
1821074386
Phone
(401) 444-5435
Address
593 Eddy Street APC Main
Enumeration Date
16 December 2005
Last Update Date
25 September 2024

Doctor Profile

Medical School Name
BAYLOR COLLEGE OF MEDICINE
Secondary Phone
4014445435
Graduation Year
1977 (49 years ago)
PAC ID
3678653599
Group Practice PAC ID
8921900044
Professional Enrollment ID
I20080618000811
Address ID
RI029034923PR593XXSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

98 HEMATOLOGY/ONCOLOGY in RI

Provider Addresses for DR. JAMES LEIGHTON SMYTHE (MD)

  • 593 Eddy Street APC Main

    Providence, RI 02903

    Phone: (401) 444-5435

    Type: Location

  • 85, Kenyon Avenue, Wakefield, South Kingstown, South County, Rhode Island, 02879, United States

    WAKEFIELD, RI 028794213

    Phone: (401) 783-6670

    Fax: (401) 789-4990

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 45 Open Payments records for all available years, with a total value of $976.

Total Amount is formed as General ($976) + Research ($0) + Ownership ($0) = $976.

Last reported payment date: 2024-08-21 • Largest payer in this snapshot: Celgene Corporation ($167).

Total Amount

$976

General + Research + Ownership

Payments

45

Total payment records

General Amount

$976

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-08-21

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

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: 2008-06-18

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20080618000811IHematology/OncologyRITBD

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.

Verify on CMS Revalidation Lookup Tool

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes307176$0
99213Established patient office or other outpatient visit, 20-29 minutes9177$0
99215Established patient office or other outpatient visit, 40-54 minutes3526$0
99205New patient office or other outpatient visit, 60-74 minutes1414$0
View full utilization report →

Insurance plans in this area (ZIP 02903)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921900044View full group profile
NameSpecialtyState
A N E S T H E S I O L O G YRI
E N D O C R I N O L O G YRI
-RI
Pain ManagementRI
Hematology/Oncology, Internal MedicineRI
Gastroenterology, Pediatric MedicineRI
N E U R O L O G YRI
Internal MedicineRI
-RI
N E U R O L O G YRI

Reviews

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Frequently asked questions

Is there an official ID for DR. JAMES LEIGHTON SMYTHE (MD) in U.S. healthcare records?
The official identifier for DR. JAMES LEIGHTON SMYTHE (MD) is NPI 1821074386.
Would DR. JAMES LEIGHTON SMYTHE (MD) appear as active to a payer?
You can treat DR. JAMES LEIGHTON SMYTHE (MD) as active for directory purposes; confirm clinical privileges separately.
What area of care is associated with DR. JAMES LEIGHTON SMYTHE (MD)?
DR. JAMES LEIGHTON SMYTHE (MD)'s record emphasizes Hematology & Oncology Physician. Clinical services aligned with this taxonomy classification.
Where in Rhode Island is DR. JAMES LEIGHTON SMYTHE (MD) registered?
Use Providence, Rhode Island as the headline location for DR. JAMES LEIGHTON SMYTHE (MD) here.
Can I trust this NPI listing for DR. JAMES LEIGHTON SMYTHE (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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