DR. PETER J DAIN (M.D.) – Internal Medicine Physician, NPI 1043275902

DR. PETER J DAIN (M.D.) is a healthcare provider. based in Boston, Massachusetts. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 155744 (MA). The NPI Number for DR. PETER J DAIN (M.D.) is 1043275902

Main info

Male
35 Years Of Experience
Accepts Medicare Assignment
Name
DR. PETER J DAIN (M.D.)
NPI
1043275902
Phone
(800) 225-8885
Address
PO BOX 415348
Enumeration Date
20 April 2006
Last Update Date
30 April 2010

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
3374080805
Graduation Year
1991 (35 years ago)
PAC ID
6406986827
Group Practice PAC ID
9931571437
Professional Enrollment ID
I20100611000173
Address ID
MA011511056SP819XXSTXX302
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

7,722 INTERNAL MEDICINE in MA

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Provider Addresses for DR. PETER J DAIN (M.D.)

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022415348

    Phone: (800) 225-8885

    Fax: (508) 334-1977

    Type: Mailing

  • 281, Hartford Avenue East, Uxbridge, Worcester County, Massachusetts, 01569, United States

    UXBRIDGE, MA 015691278

    Phone: (508) 278-5573

    Fax: (508) 278-0347

    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: 2010-06-11

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
I20100611000173IInternal 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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes1,331487$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes288214$0
99239Hospital discharge day management, more than 30 minutes152150$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes3030$0
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes2317$0
View full utilization report →

Insurance plans in this area (ZIP 02241)

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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: 9931571437View full group profile
NameSpecialtyState
Internal MedicineMA
Internal MedicineMA
Internal MedicineMA
Internal MedicineMA
Internal Medicine, HospitalistMA
Hospitalist, Internal MedicineMA
Nurse PractitionerMA
Nurse PractitionerMA
Nurse PractitionerMA
Internal MedicineMA

Reviews

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Frequently asked questions

How is DR. PETER J DAIN (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. PETER J DAIN (M.D.) with NPI 1043275902.
Does the file indicate DR. PETER J DAIN (M.D.) is practicing under active NPI?
Directory data currently reports DR. PETER J DAIN (M.D.) as active.
What is DR. PETER J DAIN (M.D.)'s specialty?
The listing groups DR. PETER J DAIN (M.D.) with Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Does DR. PETER J DAIN (M.D.) list a practice location?
Patients near Boston, Massachusetts may find DR. PETER J DAIN (M.D.) in results; validate coverage separately.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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