LILLAH GRINNELL NP
NPI 1629336979
Nurse Practitioner - Family in Cheyenne, WY

Active since April 24, 2012PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
2600 E 18TH ST, CHEYENNE, WY 82001(307) 634-2273 Get Directions Write a Review

NPPES record last updated: April 10, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 10, 2025, Nov 4, 2022, Jul 4, 2021 and 2 more (5 updates tracked since 2016).

About Lillah Grinnell Np NPPES

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

LILLAH GRINNELL NP (NPI 1629336979) is an individual family provider in Cheyenne, Wyoming, licensed in Wyoming (44363) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Cheyenne Regional Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1629336979
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameLILLAH GRINNELLCredential: NP
Location Address2600 E 18TH STCheyenne, WY 82001-5511
Mailing Address214 E 23rd StCheyenne, WY 82001-3748 · (307) 634-2273
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateApril 24, 2012
Last NPPES UpdateApril 10, 20255 updates tracked since enumeration
NPPES CertifiedApril 10, 2025
NPI 1629336979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in WY · 44363
Also ListedNurse PractitionerTaxonomy 363L00000X · License 990372 (CO)
2600 E 18TH ST, Cheyenne, WY 82001

Other Identifiers 1

OtherNP-990372CO · Colorado License Number

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Lillah Grinnell 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 ID2264678291
PECOS Enrollment IDI20191106000258
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.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
98 services93 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
62 services62 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
53 services51 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
14 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Cheyenne Regional Medical Center

Acute Care Hospitals · Cheyenne, WY
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number530014
Location214 East 23rd StreetCheyenne, WY 82001 · Laramie County
Emergency services Birthing friendly

Ivinson Memorial Hospital

Acute Care Hospitals · Laramie, WY
OwnershipGovernment - Hospital District or Authority
CMS Certification Number530025
Location255 N 30thLaramie, WY 82072 · Albany County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 82001 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
$87.12 typical visit price
range $56.42 – $170.72
Typical copayment $21.78 (range $14.10 – $42.68)
Most-billed visit code 99203
Established Patient
$99.46 typical visit price
range $18.19 – $139.32
Typical copayment $24.86 (range $4.54 – $34.83)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers18 claims20 services$18.69 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
5 suppliers84 claims86 services$90.50 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Professional)
2600 E 18TH ST
CHEYENNE, WY 82001
Counselor (Professional)
2600 E 18TH ST
CHEYENNE, WY 82001
Social Worker (Clinical)
2600 E 18TH ST
CHEYENNE, WY 82001
Home Health
2600 E 18TH ST
CHEYENNE, WY 82001
Social Worker (Clinical)
2600 E 18TH ST
CHEYENNE, WY 82001
Social Worker (Clinical)
2600 E 18TH ST
CHEYENNE, WY 82001
Social Worker (Clinical)
2600 E 18TH ST
CHEYENNE, WY 82001
Internal Medicine
2600 E 18TH ST
CHEYENNE, WY 82001

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 Lillah Grinnell's NPI number?

The NPI number for Lillah Grinnell is 1629336979. It was assigned to this individual provider in the NPPES registry on April 24, 2012.

Where is Lillah Grinnell located?

Lillah Grinnell practices at 2600 E 18th St, Cheyenne, WY 82001. The listed phone number is (307) 634-2273.

What is Lillah Grinnell's specialty?

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

Is Lillah Grinnell enrolled in Medicare?

Yes. Lillah Grinnell 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.

What insurance does Lillah Grinnell accept?

Health plans from Medica and UnitedHealthcare list Lillah Grinnell 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 Lillah Grinnell affiliated with any hospitals?

According to CMS data, Lillah Grinnell is affiliated with Cheyenne Regional Medical Center and Ivinson Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Lillah Grinnell was last updated on April 10, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.