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MARVIN L WARREN M.D.
NPI 1386733327
Anesthesiology in Billings, MT

Active since October 11, 2006PECOS EnrolledAccepts Medicare Assignment
94.3/100
CMS Quality Rating
2800 10TH AVE N, BILLINGS, MT 59101(406) 896-2447 Get Directions Write a Review

NPPES record last updated: January 29, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 29, 2020, Jan 29, 2019 (2 updates tracked since 2019).

About Marvin L Warren M.d. NPPES

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

MARVIN L WARREN M.D. (NPI 1386733327) is an individual anesthesiology provider in Billings, Montana, licensed in Montana (5217) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1980).

NPPES Registry Identity

NPI1386733327
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMARVIN L WARRENCredential: M.D.
Location Address2800 10TH AVE NBillings, MT 59101-0703
Mailing AddressPo Box 1155Billings, MT 59103-1155 · (406) 248-3290
Phone(406) 896-2447
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1980
Enumeration DateOctober 11, 2006
Last NPPES UpdateJanuary 29, 20202 updates tracked since enumeration
✔ NPI 1386733327 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MT · 5217
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2800 10TH AVE N, Billings, MT 59101
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP.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

Marvin L Warren M.d. 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 ID3577476829
PECOS Enrollment IDI20101116001066
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 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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
192 services161 patients
Anesthesia for other procedure on lower leg, ankle, and foot bones 01480
Anesthesia for procedures on lower leg, ankle, and foot bones involves administering medication to block pain and sensation in these areas. This allows doctors to perform necessary treatments or surgeries without causing discomfort. The type of anesthesia used can vary based on the specific procedure.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Billings Clinic

Acute Care Hospitals · Billings, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270004
Location2800 10th Ave NBillings, MT 59101 · Yellowstone County
Emergency services Birthing friendly

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.

94.3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality85.58
Promoting Interoperability100
Improvement Activities40

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.

ANNA VICTORIA NESOVIC DNP, FNP-BC
Nurse Practitioner (Family)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 672-0927
RODNEY JAKE TEICHROEB MD
Hospitalist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
BILLINGS CLINIC
Pharmacy (Community/Retail Pharmacy)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2084
BILLINGS CLINIC
Nursing Facility/Intermediate Care Facility
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 657-4000
DR. HEATHER I GALE MD
Radiology (Diagnostic Radiology)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-5046
MELINDA M TRUESDELL APRN
Nurse Practitioner (Psychiatric/Mental Health)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
EMILY BERENDTS ANDERSON M.S.
Speech-Language Pathologist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
KORBIN JOHNSON RN
Registered Nurse (Critical Care Medicine)
2800 10TH 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 Marvin Warren's NPI number?

The NPI number for Marvin Warren is 1386733327. It was assigned to this individual provider in the NPPES registry on October 11, 2006.

Where is Marvin Warren located?

Marvin Warren practices at 2800 10th Ave N, Billings, MT 59101. The listed phone number is (406) 896-2447.

What is Marvin Warren's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Marvin Warren enrolled in Medicare?

Yes. Marvin Warren 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 Marvin Warren accept?

Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Marvin Warren 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 Marvin Warren affiliated with any hospitals?

According to CMS data, Marvin Warren is affiliated with Billings Clinic.

When was this NPI record last updated?

The NPPES record for Marvin Warren was last updated on January 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.