LARRY D JR. NEFF (PA) – Physician Assistant, NPI 1598792582

LARRY D JR. NEFF (PA) is a healthcare provider. based in Grove, Oklahoma. specializing in PHYSICIAN ASSISTANT. They hold the professional credentials PA. They hold a License No. 2128 (OK). The NPI Number for LARRY D JR. NEFF (PA) is 1598792582

Main info

Male
23 Years Of Experience
Accepts Medicare Assignment
Name
LARRY D JR. NEFF (PA)
NPI
1598792582
Phone
(877) 783-4441
Address
1121 Neo Loop
Enumeration Date
27 June 2006
Last Update Date
21 July 2022

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8777834441
Graduation Year
2003 (23 years ago)
PAC ID
0244203024
Group Practice PAC ID
0547300196
Professional Enrollment ID
I20080814000136
Address ID
KS667394325GA444XXDRXX401
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience70
Completeness75
Years active:19State licenses:3Digital endpointsOther names

1,797 PHYSICIAN ASSISTANT in OK

Provider Addresses for LARRY D JR. NEFF (PA)

  • 1121 Neo Loop

    Grove, OK 743446046

    Phone: (877) 783-4441

    Fax: (620) 783-4090

    Type: Location

  • Joplin Post Office, 2nd Avenue East, Joplin, Liberty County, Montana, 59531, United States

    JOPLIN, MO 648032546

    Phone: (620) 783-4441

    Fax: (620) 783-4444

    Type: Mailing

  • Ortho Four States, 444, Four States Drive, East Galena, Galena, Cherokee County, Kansas, 66739, United States

    SUITE 1

    GALENA, KS 66739

    Phone: (620) 783-4441

    Fax: (620) 783-4444

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 11 Open Payments records for all available years, with a total value of $640.

Total Amount is formed as General ($640) + Research ($0) + Ownership ($0) = $640.

Last reported payment date: 2024-10-22 • Largest payer in this snapshot: Stryker Corporation ($273).

Total Amount

$640

General + Research + Ownership

Payments

11

Total payment records

General Amount

$640

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-22

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2012-09-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

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
I20070215000370IPhysician AssistantMOTBD
I20080814000136IPhysician AssistantKSTBD
I20120925000107IPhysician AssistantOKTBD

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
J7325Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg1,74425$0
J0702Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg559185$0
99213Established patient office or other outpatient visit, 20-29 minutes454398$0
20610Aspiration and/or injection of fluid from large joint278216$0
73562X-ray of knee, 3 views238195$0
View full utilization report →

Insurance plans in this area (ZIP 74344)

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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: 0547300196View full group profile
NameSpecialtyState
Pulmonary Disease, Internal MedicineMO
Internal Medicine, Pulmonary Disease, Pulmonary Disease, Critical Care (Intensivists)IN
Physician AssistantIL
Nurse PractitionerMO
Family PracticeMO
Vascular SurgeryID
-MO
Orthopedic SurgeryKS
N E U R O L O G YMO
-MO

Reviews

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Frequently asked questions

Can I verify LARRY D JR. NEFF (PA) with an NPI only?
You can start verification with NPI 1598792582 for LARRY D JR. NEFF (PA), then check state licensing separately.
Does the file indicate LARRY D JR. NEFF (PA) is practicing under active NPI?
Directory data currently reports LARRY D JR. NEFF (PA) as active.
What taxonomy line describes LARRY D JR. NEFF (PA)?
For research purposes, treat LARRY D JR. NEFF (PA) as Physician Assistant in this dataset. Clinical services aligned with this taxonomy classification.
Where is LARRY D JR. NEFF (PA) based?
LARRY D JR. NEFF (PA) is tied to Grove, Oklahoma in the data we show; additional addresses may exist on the full record.
How many locations tie to this NPI?
3 practice locations appear in the available data.

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