DR. MARK HAMILTON GARNETT (D.O.) – Family Medicine Physician, NPI 1518943158

DR. MARK HAMILTON GARNETT (D.O.) is a healthcare provider. based in Spearman, Texas. specializing in FAMILY PRACTICE. They hold the professional credentials D.O.. They hold a License No. L2270 (TX). The NPI Number for DR. MARK HAMILTON GARNETT (D.O.) is 1518943158

Main info

Male
Sole Proprietor
28 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARK HAMILTON GARNETT (D.O.)
NPI
1518943158
Phone
(806) 659-1778
Address
712 ROLAND ST
Enumeration Date
15 December 2005
Last Update Date
29 July 2008

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
1998 (28 years ago)
PAC ID
3779648613
Group Practice PAC ID
5698723682
Professional Enrollment ID
I20090210000359
Address ID
TX790813441SP707XXSTXX301
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

8,706 FAMILY PRACTICE in TX

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Provider Addresses for DR. MARK HAMILTON GARNETT (D.O.)

  • 712, Roland Street, Spearman, Hansford County, Texas, 79081, United States

    SPEARMAN, TX 790813442

    Phone: (806) 659-1778

    Fax: (806) 659-1027

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $24.

Total Amount is formed as General ($24) + Research ($0) + Ownership ($0) = $24.

Last reported payment date: 2023-10-04 • Largest payer in this snapshot: Medtronic, Inc. ($24).

Total Amount

$24

General + Research + Ownership

Payments

1

Total payment records

General Amount

$24

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-10-04

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Medtronic, Inc.$24
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: 2009-02-10

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
I20090210000359IFamily PracticeTXTBD

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
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes13847$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6528$0
99308Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes6443$0
99284Emergency department visit with moderate level of medical decision making4441$0
99238Hospital discharge day management, 30 minutes or less4237$0
View full utilization report →

Insurance plans in this area (ZIP 79081)

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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: 5698723682View full group profile
NameSpecialtyState
Family PracticeTX
Family PracticeOK
-CA
Family Practice, Emergency MedicineTX
Nurse PractitionerTX
-TX
Nurse PractitionerTX

Reviews

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Frequently asked questions

How is DR. MARK HAMILTON GARNETT (D.O.) identified in CMS data?
CMS-hosted NPPES data lists DR. MARK HAMILTON GARNETT (D.O.) with NPI 1518943158.
Is DR. MARK HAMILTON GARNETT (D.O.) still practicing?
DR. MARK HAMILTON GARNETT (D.O.) is currently listed as active in the public NPI registry.
What taxonomy line describes DR. MARK HAMILTON GARNETT (D.O.)?
For research purposes, treat DR. MARK HAMILTON GARNETT (D.O.) as Family Medicine Physician in this dataset. Clinical services aligned with this taxonomy classification.
What area does DR. MARK HAMILTON GARNETT (D.O.) serve?
DR. MARK HAMILTON GARNETT (D.O.)'s listing highlights Spearman, Texas; more addresses can appear in NPPES.
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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