DR. STANLEY CHALEFF (MD) – Pediatric Hematology & Oncology Physician, NPI 1871549451

DR. STANLEY CHALEFF (MD) is a healthcare provider. based in Portland, Maine. specializing in HEMATOLOGY/ONCOLOGY, PEDIATRIC MEDICINE. They hold the professional credentials MD. They hold a License No. 017733 (ME). The NPI Number for DR. STANLEY CHALEFF (MD) is 1871549451

Main info

Male
27 Years Of Experience
Accepts Medicare Assignment
Name
DR. STANLEY CHALEFF (MD)
NPI
1871549451
Phone
(207) 661-2000
Address
190 RIVERSIDE ST
Enumeration Date
26 May 2006
Deactivation Date
17 July 2007
Reactivation Date
26 November 2007
Last Update Date
27 April 2017

Doctor Profile

Medical School Name
UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Secondary Phone
2078859905
Graduation Year
1999 (27 years ago)
PAC ID
6608808043
Group Practice PAC ID
7517860588
Professional Enrollment ID
I20080411000049
Address ID
ME041023134PO22XXXSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

86 HEMATOLOGY/ONCOLOGY in ME

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Provider Addresses for DR. STANLEY CHALEFF (MD)

  • 190, Riverside Street, Portland, Cumberland County, Maine, 04103, United States

    SUITE 6B

    PORTLAND, ME 041031073

    Phone: (207) 661-2000

    Fax: (207) 661-2033

    Type: Mailing

  • 100, Campus Drive, Cumberland County, Maine, 04074, United States

    UNIT 107

    SCARBOROUGH, ME 040749692

    Phone: (207) 885-7565

    Fax: (207) 885-7577

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2008-04-11

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
I20080411000049IHematology/OncologyMETBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 04103)

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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: 7517860588View full group profile

Reviews

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Frequently asked questions

Does DR. STANLEY CHALEFF (MD) have a public NPI I can cite?
Public records show DR. STANLEY CHALEFF (MD) under NPI 1871549451.
Quick check: is DR. STANLEY CHALEFF (MD) active?
Public NPPES data shows DR. STANLEY CHALEFF (MD) with an active NPI status right now.
Which specialty label fits DR. STANLEY CHALEFF (MD)?
NPPES ties DR. STANLEY CHALEFF (MD) to Pediatric Hematology & Oncology Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.
What city is tied to DR. STANLEY CHALEFF (MD)?
The directory associates DR. STANLEY CHALEFF (MD) with Portland, Maine. Check all listed addresses for suites or satellite offices.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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