STEPHANIE T. OSIECKI (MD) – Internal Medicine Physician, NPI 1922080464

STEPHANIE T. OSIECKI (MD) is a healthcare provider. based in Northampton, Massachusetts. specializing in Internal Medicine Physician. They hold the professional credentials MD. They hold a License No. 203867 (MA). The NPI Number for STEPHANIE T. OSIECKI (MD) is 1922080464

Main info

Female
37 Years Of Experience
Accepts Medicare Assignment
Name
STEPHANIE T. OSIECKI (MD)
NPI
1922080464
Phone
(413) 586-1100
Address
264 ELM ST
Enumeration Date
18 November 2005
Last Update Date
17 June 2024

Doctor Profile

Medical School Name
UNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Secondary Phone
4135861100
Graduation Year
1989 (37 years ago)
PAC ID
0840354452
Group Practice PAC ID
3375645724
Professional Enrollment ID
I20090127000212
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

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Provider Addresses for STEPHANIE T. OSIECKI (MD)

  • 264, Elm Street, Florence, Northampton, Hampshire, Massachusetts, 01063, United States

    SUITES 10&12

    NORTHAMPTON, MA 010602857

    Phone: (413) 586-1100

    Fax: (413) 584-7062

    Type: Mailing

  • 325 N Saint Paul St Ste 3100

    Dallas, TX 752013923

    Phone: (888) 731-8994

    Fax: (888) 732-8119

    Type: Location

  • 721 Depot Dr

    Anchorage, AK 995011615

    Phone: (888) 731-8994

    Fax: (888) 732-8119

    Type: Location

  • 100 CAMBRIDGE ST FL 14

    BOSTON, MA 021142509

    Phone: (888) 731-8994

    Fax: (888) 732-8119

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $25.

Total Amount is formed as General ($25) + Research ($0) + Ownership ($0) = $25.

Last reported payment date: 2024-10-17 • Largest payer in this snapshot: E.R. Squibb & Sons, L.L.C. ($25).

Total Amount

$25

General + Research + Ownership

Payments

1

Total payment records

General Amount

$25

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-17

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: 2009-01-27

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
I20090127000212IInternal MedicineMATBD

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 01060)

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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: 3375645724View full group profile
NameSpecialtyState
-MA

Reviews

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Frequently asked questions

What is the standard ID for STEPHANIE T. OSIECKI (MD) in the U.S.?
In the U.S., STEPHANIE T. OSIECKI (MD) is identified by NPI 1922080464.
Should I treat STEPHANIE T. OSIECKI (MD) as an active provider?
Patients and plans typically see STEPHANIE T. OSIECKI (MD) as active in the national extract.
What does the directory say STEPHANIE T. OSIECKI (MD) does?
Insurance directories may phrase it differently, but here STEPHANIE T. OSIECKI (MD) maps to Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Is STEPHANIE T. OSIECKI (MD) tied to Northampton, Massachusetts?
If you are local to Northampton, Massachusetts, STEPHANIE T. OSIECKI (MD) may be relevant to your search.
Who maintains STEPHANIE T. OSIECKI (MD)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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