DR. JOHN JOSEPH PARKER (MD) – Internal Medicine Physician, NPI 1821005109

DR. JOHN JOSEPH PARKER (MD) is a healthcare provider. based in Topsham, Maine. specializing in Internal Medicine Physician. They hold the professional credentials MD. They hold a License No. 013640 (ME). The NPI Number for DR. JOHN JOSEPH PARKER (MD) is 1821005109

Main info

Male
35 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOHN JOSEPH PARKER (MD)
NPI
1821005109
Phone
(207) 406-7600
Address
1 WELLNESS WAY
Enumeration Date
1 August 2006
Last Update Date
22 January 2015

Doctor Profile

Medical School Name
UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Secondary Phone
2077290181
Graduation Year
1991 (35 years ago)
PAC ID
6901880731
Group Practice PAC ID
5496739468
Professional Enrollment ID
I20040617000769
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for DR. JOHN JOSEPH PARKER (MD)

  • 1 WELLNESS WAY

    SUITE A

    TOPSHAM, ME 040861768

    Phone: (207) 406-7600

    Fax: (207) 406-7601

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

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: 2004-06-17

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
I20040617000769IInternal MedicineMETBD

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 04086)

Loading plans...

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: 5496739468View full group profile

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What NPI should I save for DR. JOHN JOSEPH PARKER (MD)?
Save NPI 1821005109 if you need a stable reference for DR. JOHN JOSEPH PARKER (MD).
Is DR. JOHN JOSEPH PARKER (MD) currently active in the NPI registry?
CMS-published data lists DR. JOHN JOSEPH PARKER (MD) as an active registrant.
Can you summarize DR. JOHN JOSEPH PARKER (MD)'s specialty in plain language?
Clinically, the directory lists DR. JOHN JOSEPH PARKER (MD) with Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What location shows for DR. JOHN JOSEPH PARKER (MD)?
We surface Topsham, Maine for DR. JOHN JOSEPH PARKER (MD) based on available NPPES addresses.
Is DR. JOHN JOSEPH PARKER (MD) a real provider?
This page reflects official NPPES data for NPI 1821005109. Always confirm identity and privileges with the practice and licensing boards.

Similar Providers

New England Cancer Specialists

Hematology & Oncology Physician
100 CAMPUS DR UNIT 108
NPI: 1205896107

KRISTIN KANCHANA JHAMB (MD)

Internal Medicine Physician
1 WELLNESS WAY
NPI: 1598771297

DR. DANIEL W CHASE (MD)

Internal Medicine Physician
1, Main Street, Topsham Historic District, Topsham, Sagadahoc County, Maine, 04086, United States
NPI: 1942217237

JENNIFER M RIEHL (MD)

Internal Medicine Physician
1 WELLNESS WAY
NPI: 1700897618

DR. BRYAN CHRISTOPHER LEWIS (M.D.)

Internal Medicine Physician
Memorial Medical Office Building, 246, Pleasant Street, Concord, Merrimack County, New Hampshire, 03301, United States
NPI: 1194836791

MARK A WRONA (MD)

Internal Medicine Physician
15 Rock Row Ste 110
NPI: 1003909565

DR. CLIFFORD B RUBIN (DO)

Internal Medicine Physician
22 BRAMHALL ST
NPI: 1942375225

DR. JUAN R RUBERO (MD)

Internal Medicine Physician
4 HORTON PL
NPI: 1700916194

DR. ELIZABETH DENNIS (D.O.)

Internal Medicine Physician
15 Rock Row Ste 110
NPI: 1073714721