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THERESA NEFF NP
NPI 1063815439
Nurse Practitioner in Anderson, IN

Active since September 30, 2014PECOS EnrolledAccepts Medicare Assignment
2610 ENTERPRISE DR., ANDERSON, IN 46013(765) 683-4400(765) 642-7903 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 5, 2025, Oct 8, 2025, Jun 10, 2021 and 2 more (5 updates tracked since 2018).

About Theresa Neff Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THERESA NEFF NP (NPI 1063815439) is an individual nurse practitioner in Anderson, Indiana, licensed in Indiana (71005120A) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1063815439
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameTHERESA NEFFCredential: NP
Location Address2610 ENTERPRISE DR.Anderson, IN 46013-9684
Mailing Address2610 Enterprise DrAnderson, IN 46013-9684 · (765) 683-4400 · Fax (765) 642-7903
Phone(765) 683-4400
Fax(765) 642-7903
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateSeptember 30, 2014
Last NPPES UpdateNovember 5, 20255 updates tracked since enumeration
NPPES CertifiedNovember 5, 2025
✔ NPI 1063815439 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IN · 71005120A
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 71005120A (IN)
2610 ENTERPRISE DR., Anderson, IN 46013
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Secondary Practice Locations 2

Location 18435 Clearvista Pl Ste 101Indianapolis, IN 46256-3761 · Phone (317) 621-1006 · Fax (317) 621-1010
Location 21701 N Senate BlvdIndianapolis, IN 46202-1239 · Phone (317) 962-2000

Other Identifiers 1

Medicaid201253190IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource, Cigna Healthcare and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Theresa Neff Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335369842
PECOS Enrollment IDI20141006001131
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Theresa Neff reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Physicians Of Indiana Inc
20 mi
Family Medicine
7240 SHADELAND STATION, SUITE 300
Indianapolis, IN 46256
  • Reassigned Medicare billing, Indiana enrollment
  • 2,087 clinicians in this Medicare group
NPI 1619105244 (317) 355-5555
Diabetes Associates Of Indiana P.C.
25 mi
Geriatric Medicine
9526 PARK MERIDIAN DR
Indianapolis, IN 46260
  • Reassigned Medicare billing, Indiana enrollment
  • Medicare enrollment name: Diabetes Associates Of Indiana PC
  • 4 clinicians in this Medicare group
NPI 1063130383 (317) 652-9684
Iu Health Medical Group, LLC
29 mi
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
NPI 1326893777 (317) 962-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
900 services12 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
196 services135 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
144 services96 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
81 services63 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
68 services59 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
47 services18 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Indiana University Health

Acute Care Hospitals · Indianapolis, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150056
Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County
Emergency services Birthing friendly

Community Hospital Of Anderson And Madison County

Acute Care Hospitals · Anderson, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150113
Location1515 N Madison AveAnderson, IN 46011 · Madison County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46013 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
2 suppliers11 claims143 services$18.48 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
2 suppliers11 claims345 services$2.38 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
24 suppliers51 claims182 services$5.86 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers18 claims22 services$1.08 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
2 suppliers18 claims18 services$315.86 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
3 suppliers11 claims1,320 services$6.82 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Theresa Neff's NPI number?

The NPI number for Theresa Neff is 1063815439. It was assigned to this individual provider in the NPPES registry on September 30, 2014.

Where is Theresa Neff located?

Theresa Neff practices at 2610 Enterprise Dr., Anderson, IN 46013. The listed phone number is (765) 683-4400.

What is Theresa Neff's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Theresa Neff enrolled in Medicare?

Yes. Theresa Neff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Theresa Neff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Neff reassigns Medicare benefits to 3 organizations: Community Physicians Of Indiana Inc (Indianapolis, IN), Diabetes Associates Of Indiana P.C. (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Theresa Neff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Theresa Neff accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, Cigna Healthcare and UnitedHealthcare list Theresa Neff as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Theresa Neff affiliated with any hospitals?

According to CMS data, Theresa Neff is affiliated with Indiana University Health and Community Hospital Of Anderson And Madison County.

When was this NPI record last updated?

The NPPES record for Theresa Neff was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.