MR. DEREK MICHAEL LITTLEJOHN PMHNP-BC
NPI 1912676669
Nurse Practitioner - Psychiatric/Mental Health in Indianapolis, IN

Q: What is Derek Littlejohn's NPI number?

The NPI number for Derek Littlejohn is 1912676669. It was assigned to this individual provider in the NPPES registry on September 7, 2021.

Q: What is Derek Littlejohn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Derek Littlejohn was last updated on January 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.

Active since September 07, 2021PECOS Enrolled

9245 N. MERIDIAN STREET SUITE 300, INDIANAPOLIS, IN 46260(317) 818-9000(317) 818-9009 Get Directions Write a Review

NPPES record last updated: January 24, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 24, 2023, Sep 7, 2021 (2 updates tracked since 2021).

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About Mr. Derek Michael Littlejohn Pmhnp-bc NPPES

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

MR. DEREK MICHAEL LITTLEJOHN PMHNP-BC (NPI 1912676669) is an individual psychiatric/mental health provider in Indianapolis, Indiana, licensed in Indiana (71012926A) and active in the NPI registry since September 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1912676669

Entity TypeIndividualMale

Primary Taxonomy363LP0808X

Provider Legal NameMR. DEREK MICHAEL LITTLEJOHNCredential: PMHNP-BC

Location Address9245 N. MERIDIAN STREET SUITE 300Indianapolis, IN 46260

Mailing Address9245 N. Meridian Street Suite 300Indianapolis, IN 46260 · (317) 818-9000 · Fax (317) 818-9009

Phone(317) 818-9000

Fax(317) 818-9009

Sole ProprietorYes

Medical School CMSOtherGraduated 2022

Enumeration DateSeptember 7, 2021

Last NPPES UpdateJanuary 24, 20232 updates tracked since enumeration

NPPES CertifiedJanuary 24, 2023

✔ NPI 1912676669 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in IN · 71012926A

Also ListedRegistered Nurse · Psychiatric/Mental HealthTaxonomy 163WP0808X · License 28220461A (IN)

9245 N. MERIDIAN STREET SUITE 300, Indianapolis, IN 46260

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health 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 (PECOS)

Mr. Derek Michael Littlejohn Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779027271

PECOS Enrollment IDI20240625003848

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

Medicare enrollment records show Derek Littlejohn reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Axon Network Services, LLC

Same address

Psychiatry

9245 N MERIDIAN ST STE 300
Indianapolis, IN 46260

Reassigned Medicare billing, Indiana enrollment
5 clinicians in this Medicare group

NPI 1124535109 (317) 818-9000

Axon Tms

Same address

Psychiatry

9245 N MERIDIAN ST STE 300
Indianapolis, IN 46260

Reassigned Medicare billing, Indiana enrollment
5 clinicians in this Medicare group

NPI 1184279697 (317) 818-9000

Health Associates Indy

0.1 mi

Psychologist

9240 N MERIDIAN ST STE 320
Indianapolis, IN 46260

Reassigned Medicare billing, Indiana enrollment
9 clinicians in this Medicare group

NPI 1578253233 (317) 844-7489

Healthnet, Inc.

8.1 mi

Federally Qualified Health Center (FQHC)

2855 N KEYSTONE AVE, STE 100
Indianapolis, IN 46218

Reassigned Medicare billing, Indiana enrollment
95 clinicians in this Medicare group

NPI 1780634964 (317) 957-2300

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46260 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.

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 Derek Littlejohn's NPI number?

The NPI number for Derek Littlejohn is 1912676669. It was assigned to this individual provider in the NPPES registry on September 7, 2021.

Where is Derek Littlejohn located?

Derek Littlejohn practices at 9245 N. Meridian Street Suite 300, Indianapolis, IN 46260. The listed phone number is (317) 818-9000.

What is Derek Littlejohn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Derek Littlejohn enrolled in Medicare?

Yes. Derek Littlejohn is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Derek Littlejohn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Littlejohn reassigns Medicare benefits to 4 organizations: Axon Network Services, LLC (Indianapolis, IN), Axon Tms (Indianapolis, IN), Health Associates Indy (Indianapolis, IN) and Healthnet, Inc. (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 Derek Littlejohn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Derek Littlejohn accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Derek Littlejohn 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.

When was this NPI record last updated?

The NPPES record for Derek Littlejohn was last updated on January 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.