DR. DIANA S. GREYWOLF (PH.D.) – Clinical Psychologist, NPI 1013189216

DR. DIANA S. GREYWOLF (PH.D.) is a healthcare provider. based in Thetford, Vermont. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials PH.D.. They hold a License No. 048.0051503 (VT). The NPI Number for DR. DIANA S. GREYWOLF (PH.D.) is 1013189216

Main info

Female
Sole Proprietor
19 Years Of Experience
Accepts Medicare Assignment
Name
DR. DIANA S. GREYWOLF (PH.D.)
NPI
1013189216
Phone
(802) 649-2462
Address
PO BOX 124
Enumeration Date
27 March 2008
Last Update Date
16 February 2012

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4013561940
Graduation Year
2007 (19 years ago)
PAC ID
1456493899
Group Practice PAC ID
8628973666
Professional Enrollment ID
I20151012000643
Address ID
RI028181807EA816XXRDXX300
Telehealth
Yes
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience50
Completeness75
Years active:18State licenses:1Digital endpointsOther names

169 CLINICAL PSYCHOLOGIST in VT

Provider Addresses for DR. DIANA S. GREYWOLF (PH.D.)

  • PO BOX 124

    THETFORD, VT 050740124

    Phone: (802) 649-2462

    Type: Mailing

  • 221 ROUTE 5 S

    SUITE 1

    NORWICH, VT 050559523

    Phone: (802) 649-2462

    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: 2015-10-12

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
I20151012000643IClinical PsychologistRITBD

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 05074)

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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: 8628973666View full group profile
NameSpecialtyState
Nurse PractitionerRI
Psychiatry, Geriatric MedicineRI
-NY
P S Y C H I A T R YRI
-CO
P S Y C H I A T R YRI
Clinical Social WorkerRI
-RI
Clinical PsychologistRI
-RI

Reviews

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Frequently asked questions

What identifier follows DR. DIANA S. GREYWOLF (PH.D.) across health systems?
The NPI 1013189216 uniquely identifies DR. DIANA S. GREYWOLF (PH.D.) in U.S. healthcare data.
Should I treat DR. DIANA S. GREYWOLF (PH.D.) as an active provider?
Patients and plans typically see DR. DIANA S. GREYWOLF (PH.D.) as active in the national extract.
How should patients interpret DR. DIANA S. GREYWOLF (PH.D.)'s specialty?
The extract shows Clinical Psychologist for DR. DIANA S. GREYWOLF (PH.D.). Clinical services aligned with this taxonomy classification.
What city is tied to DR. DIANA S. GREYWOLF (PH.D.)?
The directory associates DR. DIANA S. GREYWOLF (PH.D.) with Thetford, Vermont. Check all listed addresses for suites or satellite offices.
Who maintains DR. DIANA S. GREYWOLF (PH.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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