DR. TIMOTHY PIEARSON (D.O.) – Family Medicine Physician, NPI 1740233659

DR. TIMOTHY PIEARSON (D.O.) is a healthcare provider. based in Greenfield, Iowa. specializing in FAMILY PRACTICE, EMERGENCY MEDICINE. They hold the professional credentials D.O.. They hold a License No. 3543 (IA). The NPI Number for DR. TIMOTHY PIEARSON (D.O.) is 1740233659

Main info

Male
24 Years Of Experience
Accepts Medicare Assignment
Name
DR. TIMOTHY PIEARSON (D.O.)
NPI
1740233659
Phone
(641) 743-2123
Address
609 SE KENT ST
Enumeration Date
19 May 2006
Last Update Date
17 November 2022

Doctor Profile

Medical School Name
DES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Secondary Phone
5155232513
Graduation Year
2002 (24 years ago)
PAC ID
8123019148
Group Practice PAC ID
3072403153
Professional Enrollment ID
I20040519000996
Address ID
IA502502164ST303XXSTXX300
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

1,656 FAMILY PRACTICE in IA

Loading map...

Provider Addresses for DR. TIMOTHY PIEARSON (D.O.)

  • Adair County Memorial Hospital, 609, Southeast Kent Street, Greenfield, Adair County, Iowa, 50849, United States

    GREENFIELD, IA 508499454

    Phone: (641) 743-2123

    Fax: (641) 743-7294

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $31.

Total Amount is formed as General ($31) + Research ($0) + Ownership ($0) = $31.

Last reported payment date: 2023-08-23 • Largest payer in this snapshot: ABBVIE INC. ($31).

Total Amount

$31

General + Research + Ownership

Payments

2

Total payment records

General Amount

$31

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-08-23

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
ABBVIE INC.$31
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: 2004-05-19

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
I20040519000996IFamily PracticeIATBD

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 50849)

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: 3072403153View full group profile
NameSpecialtyState
Physician AssistantKS
Internal MedicineIA
Nurse PractitionerIA
Family PracticeIA
Physician AssistantIA
Nurse PractitionerIA
General SurgeryIA
Physician AssistantIA
Physician AssistantMN
Nurse PractitionerIA

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

How do payers reference DR. TIMOTHY PIEARSON (D.O.)?
For DR. TIMOTHY PIEARSON (D.O.), use NPI 1740233659 as the unique 10-digit identifier.
Active or inactive — what applies to DR. TIMOTHY PIEARSON (D.O.)?
You should see DR. TIMOTHY PIEARSON (D.O.) as active in CMS-hosted NPPES data.
What expertise is attributed to DR. TIMOTHY PIEARSON (D.O.)?
DR. TIMOTHY PIEARSON (D.O.)'s specialty line reads Family Medicine Physician. Clinical services aligned with this taxonomy classification.
Is DR. TIMOTHY PIEARSON (D.O.) located near Greenfield?
DR. TIMOTHY PIEARSON (D.O.) currently maps to Greenfield, Iowa in this extract.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

Similar Providers

JESSICA KENNEDY (DO)

Family Medicine Physician
PO BOX 424
NPI: 1851689905

DEMI LOUISE O'BRIEN (MD)

Family Medicine Physician
840 E UNIVERSITY AVE
NPI: 1700409828

GREENFIELD MEDICAL CLINIC

Rural Health Clinic/Center
1700 W TOWNLINE ST
NPI: 1700564200

GREATER REGIONAL MEDICAL CENTER

Rural Health Clinic/Center
1700 W TOWNLINE ST
NPI: 1194406223