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MARILYN F. GRAMS MD
NPI 1669492104
Internal Medicine - Geriatric Medicine in Billings, MT

Active since July 20, 2006PECOS Enrolled
89.75/100
CMS Quality Rating
2825 8TH AVE N, BILLINGS, MT 59101(406) 238-2500 Get Directions Write a Review

NPPES record last updated: April 23, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2019, Mar 17, 2018, Nov 21, 2017 (3 updates tracked since 2017).

About Marilyn F. Grams Md NPPES

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

MARILYN F. GRAMS MD (NPI 1669492104) is an individual geriatric medicine provider in Billings, Montana, licensed in Montana (10557) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Murray.

NPPES Registry Identity

NPI1669492104
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameMARILYN F. GRAMSCredential: MD
Location Address2825 8TH AVE NBillings, MT 59101-0909
Mailing AddressPo Box 35100Billings, MT 59107-5100 · (406) 238-2500
Phone(406) 238-2500
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateApril 23, 20193 updates tracked since enumeration
✔ NPI 1669492104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in MT · 10557
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedHospitalistTaxonomy 208M00000X · License 8742023-1205 (UT), M-14661 (ID)
2825 8TH AVE N, Billings, MT 59101
Open in Google Maps ↗

Secondary Practice Location 1

Location 15505 S 900 E Ste 240Murray, UT 84117-7210 · Phone (801) 783-5011 · Fax (801) 746-3734

Other Identifiers 3

Other000097204MT · Bcbs Pin
Other000097205MT · Bcbs Pi
Other0068770MT · Mdcd Pin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marilyn F. Grams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

6

Medicare enrollment records show Marilyn Grams reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

West Park Hospital District
91 mi
End-Stage Renal Disease (ESRD) Treatment
707 SHERIDAN AVE
Cody, WY 82414
  • Reassigned Medicare billing, Wyoming enrollment
  • Also billed through NPI 1366432197 (Wyoming)
  • 181 clinicians in this Medicare group
NPI 1295815744 (307) 527-7501
St. Peter's Health
149 mi
Family Medicine
515 SOUTH FRONT ST
Townsend, MT 59644
  • Reassigned Medicare billing, Montana enrollment
  • Medicare enrollment name: St Peters Health
  • 304 clinicians in this Medicare group
NPI 1174165682 (406) 457-4180
Utah Regional Hospitalists LLC
235 mi
Hospitalist
3100 CHANNING WAY
Idaho Falls, ID 83404
  • Reassigned Medicare billing, Idaho enrollment
  • 56 clinicians in this Medicare group
NPI 1740715507 (208) 227-2575
Cogent Healthcare Of Montana P C
275 mi
Internal Medicine
2827 FORT MISSOULA RD
Missoula, MT 59804
  • Reassigned Medicare billing, Montana enrollment
  • 155 clinicians in this Medicare group
NPI 1053569525 (406) 728-4100
St. John's Lutheran Hospital, Inc.
377 mi
Critical Access
209 HEALTH PARK DR
Libby, MT 59923
  • Reassigned Medicare billing, Montana enrollment
  • Medicare enrollment name: St Johns Lutheran Hospital Inc
  • 67 clinicians in this Medicare group
NPI 1952312050 (406) 283-7000
Shoshone Medical Center
382 mi
Critical Access
25 JACOBS GULCH RD
Kellogg, ID 83837
  • Reassigned Medicare billing, Idaho enrollment
  • 60 clinicians in this Medicare group
NPI 1043215437 (208) 784-7017

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 2

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.
21 services17 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.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59101 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
$172.26 typical visit price
range $56.81 – $172.26
Typical copayment $43.06 (range $14.20 – $43.06)
Most-billed visit code 99205
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
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.

89.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.04
Promoting Interoperability94
Improvement Activities40

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%90 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

GARETT COHL SCHILD PT, DPT
Physical Therapist
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
BRIDGET SUSAN CANNON P.T.
Physical Therapist
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
MRS. DANA MARIE FOLEY OT
Occupational Therapist (Physical Rehabilitation)
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
RYAN RHODES DO
Hospitalist
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
ANGELA M MERRIN PA
Physician Assistant
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
SHANNON HEDSTROM BARNES ABOC
Technician/Technologist (Optician)
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
JON M DEIM CSA
Registered Nurse
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
DALE M. PETERSON MD
Psychiatry & Neurology (Neurology)
2825 8TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500

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 Marilyn Grams's NPI number?

The NPI number for Marilyn Grams is 1669492104. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Marilyn Grams located?

Marilyn Grams practices at 2825 8th Ave N, Billings, MT 59101. The listed phone number is (406) 238-2500.

What is Marilyn Grams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Marilyn Grams enrolled in Medicare?

Yes. Marilyn Grams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marilyn Grams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Grams reassigns Medicare benefits to 6 organizations: West Park Hospital District (Cody, WY), St. Peter's Health (Townsend, MT), Utah Regional Hospitalists LLC (Idaho Falls, ID), Cogent Healthcare Of Montana P C (Missoula, MT), St. John's Lutheran Hospital, Inc. (Libby, MT) and 1 more organization, listed in the Medicare section above. 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 Marilyn Grams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marilyn Grams accept?

Health plans from Blue Cross Blue Shield of Wyoming and Providence Health Plan list Marilyn Grams 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 Marilyn Grams was last updated on April 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.