1. Home
  2. Directory
  3. Oklahoma
  4. Norman
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LARA EILEEN SHIRK APRN-CNP
NPI 1376946889
Nurse Practitioner - Family in Norman, OK

Active since September 29, 2014PECOS Enrolled
620 ELM AVE RM 181, NORMAN, OK 73019(405) 325-4611(405) 325-7542 Get Directions Write a Review

NPPES record last updated: October 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 16, 2020, Mar 30, 2018, Oct 3, 2015 (3 updates tracked since 2015).

About Lara Eileen Shirk Aprn-cnp NPPES

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

LARA EILEEN SHIRK APRN-CNP (NPI 1376946889) is an individual family provider in Norman, Oklahoma, licensed in Oklahoma (103493) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS, is affiliated with Norman Regional, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1376946889
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameLARA EILEEN SHIRKCredential: APRN-CNP
Location Address620 ELM AVE RM 181Norman, OK 73019-3146
Mailing Address620 Elm Ave Rm 181Norman, OK 73019-3146 · (405) 325-4611 · Fax (405) 325-7542
Phone(405) 325-4611
Fax(405) 325-7542
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateSeptember 29, 2014
Last NPPES UpdateOctober 23, 20263 updates tracked since enumeration
NPPES CertifiedOctober 23, 2026
✔ NPI 1376946889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in OK · 103493
620 ELM AVE RM 181, Norman, OK 73019
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan 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

Lara Eileen Shirk Aprn-cnp 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 ID8426378787
PECOS Enrollment IDI20150528000412
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 Reassignment

Medicare enrollment records show Lara Shirk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Clinic Oklahoma Communities
29 mi
Family Medicine
4300 W MEMORIAL RD
Oklahoma City, OK 73120
  • Reassigned Medicare billing, Oklahoma enrollment
  • 975 clinicians in this Medicare group
NPI 1386874550 (405) 752-3333

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 9

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.

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.
417 services305 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
55 services55 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
47 services47 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
42 services42 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
40 services40 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
33 services33 patients

Hospital Affiliations CMS Care Compare 2

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

Norman Regional

Acute Care Hospitals · Norman, OK
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number370008
Location3300 Healthplex PkwyNorman, OK 73072 · Cleveland County
Emergency services Birthing friendly

Mercy Hospital Oklahoma City, Inc

Acute Care Hospitals · Oklahoma City, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370013
Location4300 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73019 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
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
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 Lara Shirk's NPI number?

The NPI number for Lara Shirk is 1376946889. It was assigned to this individual provider in the NPPES registry on September 29, 2014.

Where is Lara Shirk located?

Lara Shirk practices at 620 Elm Ave Rm 181, Norman, OK 73019. The listed phone number is (405) 325-4611.

What is Lara Shirk's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Lara Shirk enrolled in Medicare?

Yes. Lara Shirk 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 organization bills Medicare for Lara Shirk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lara Shirk reassigns Medicare benefits to Mercy Clinic Oklahoma Communities (Oklahoma City, OK). The 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 Lara Shirk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lara Shirk accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Lara Shirk 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 Lara Shirk affiliated with any hospitals?

According to CMS data, Lara Shirk is affiliated with Norman Regional and Mercy Hospital Oklahoma City, Inc.

When was this NPI record last updated?

The NPPES record for Lara Shirk was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.