DR. ASHLEY EVA BESEMER (PSY.D) – Clinical Psychologist, NPI 1891037453

DR. ASHLEY EVA BESEMER (PSY.D) is a healthcare provider. based in Mattapan, Massachusetts. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials PSY.D. They hold a License No. PS1605 (ME). The NPI Number for DR. ASHLEY EVA BESEMER (PSY.D) is 1891037453

Main info

Female
Sole Proprietor
8 Years Of Experience
Accepts Medicare Assignment
Name
DR. ASHLEY EVA BESEMER (PSY.D)
NPI
1891037453
Phone
(617) 534-2050
Address
255 River St
Enumeration Date
21 March 2013
Last Update Date
24 February 2020

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2075719923
Graduation Year
2018 (8 years ago)
PAC ID
9537558309
Group Practice PAC ID
6406980903
Professional Enrollment ID
I20211116003039
Address ID
ME040059431BI22XXXRDXX405
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience55
Completeness75
Years active:13State licenses:1Digital endpointsOther names

1,694 CLINICAL PSYCHOLOGIST in MA

Provider Addresses for DR. ASHLEY EVA BESEMER (PSY.D)

  • 255 River St

    Mattapan, MA 021262729

    Phone: (617) 534-2050

    Type: Location

  • 21 CRESTWOOD DR

    STANDISH, ME 040846615

    Phone: (413) 204-7278

    Type: Mailing

  • 22 W COLE RD STE 103

    BIDDEFORD, ME 040059431

    Phone: (207) 571-9923

    Fax: (207) 517-9927

    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: 2021-11-16

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
I20211116003039IClinical PsychologistMETBD

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 02126)

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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: 6406980903View full group profile
NameSpecialtyState
Clinical Social WorkerME
Clinical Social WorkerME
-TX
-ME
Clinical Social WorkerMA
Clinical Social WorkerME

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Frequently asked questions

Is DR. ASHLEY EVA BESEMER (PSY.D) listed with a National Provider Identifier?
Yes — DR. ASHLEY EVA BESEMER (PSY.D) has NPI 1891037453 on file in the registry.
Is there an active status for DR. ASHLEY EVA BESEMER (PSY.D)?
For scheduling context, DR. ASHLEY EVA BESEMER (PSY.D) is shown as active in the registry.
What expertise is attributed to DR. ASHLEY EVA BESEMER (PSY.D)?
DR. ASHLEY EVA BESEMER (PSY.D)'s specialty line reads Clinical Psychologist. Clinical services aligned with this taxonomy classification.
Is DR. ASHLEY EVA BESEMER (PSY.D) located near Mattapan?
DR. ASHLEY EVA BESEMER (PSY.D) currently maps to Mattapan, Massachusetts in this extract.
Can I trust this NPI listing for DR. ASHLEY EVA BESEMER (PSY.D)?
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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