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MARIELA HERRERA ROJAS M.D.
NPI 1922318096
Psychiatry & Neurology - Psychiatry in Billings, MT

Active since October 07, 2010PECOS EnrolledAccepts Medicare Assignment
1020 N 27TH ST, BILLINGS, MT 59101(406) 238-2500 Get Directions Write a Review

NPPES record last updated: February 23, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 23, 2022, Mar 18, 2021, Apr 17, 2019 (3 updates tracked since 2019).

About Mariela Herrera Rojas M.d. NPPES

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

MARIELA HERRERA ROJAS M.D. (NPI 1922318096) is an individual psychiatry provider in Billings, Montana, licensed in Ohio (57.017664) and active in the NPI registry since October 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in Cleveland, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1922318096
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameMARIELA HERRERA ROJASCredential: M.D.
Location Address1020 N 27TH STBillings, MT 59101
Mailing AddressPo Box 35100Billings, MT 59107-5100 · (406) 238-2500
Phone(406) 238-2500
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateOctober 7, 2010
Last NPPES UpdateFebruary 23, 20223 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2022
✔ NPI 1922318096 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in OH · 57.017664
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License MED-PHYS-LIC-33952 (MT)
1020 N 27TH ST, Billings, MT 59101
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Secondary Practice Location 1

Location 19500 Euclid Ave, P57Cleveland, OH 44195-0001 · Phone (216) 445-2997 · Fax (216) 445-7032

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

Mariela Herrera Rojas 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 ID648583419
PECOS Enrollment IDI20150722005508
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.

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
$70.82 typical visit price
range $18.24 – $140.32
Typical copayment $17.70 (range $4.56 – $35.08)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

CHERYL I. IKEDA LCSW
Social Worker (Clinical)
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
BILLINGS CLINIC
Psychiatry & Neurology (Psychiatry)
1020 N 27TH ST, STE 410
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
MARY SUZANNE PUCHALSKI DPT, OCS
Physical Therapist
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 239-6353
CHANCE STEWART
Hospitalist
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 381-3637
JOHN C. ANDRE PHD
Psychologist (Clinical)
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
JOHN G. DENEGRE MD
Psychiatry & Neurology (Psychiatry)
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
DR. ELIZABETH A WALTER MD
Psychiatry & Neurology (Psychiatry)
1020 N 27TH ST
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
WILLIAM BREDEHOFT PHD
Psychologist
1020 N 27TH ST
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 Mariela Herrera Rojas's NPI number?

The NPI number for Mariela Herrera Rojas is 1922318096. It was assigned to this individual provider in the NPPES registry on October 7, 2010.

Where is Mariela Herrera Rojas located?

Mariela Herrera Rojas practices at 1020 N 27th St, Billings, MT 59101. The listed phone number is (406) 238-2500.

What is Mariela Herrera Rojas's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mariela Herrera Rojas enrolled in Medicare?

Yes. Mariela Herrera Rojas 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 Mariela Herrera Rojas accept?

Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Mariela Herrera Rojas 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 Mariela Herrera Rojas was last updated on February 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.