Tessa V Perez, MD - Medicare Pediatrics in Billings, MT

Tessa V Perez, MD is a medicare enrolled "Pediatrics" physician in Billings, Montana. Her current practice location is 3401 Avenue E, Billings, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 281-8700.

Tessa V Perez is licensed to practice in Montana (license number 100592) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1285690768.

Contact Information

Tessa V Perez, MD
3401 Avenue E,
Billings, MT 59102-6561
(406) 281-8700
(406) 281-8708

Map and Direction




Physician's Profile

Full NameTessa V Perez
GenderFemale
SpecialityPediatrics
Location3401 Avenue E, Billings, Montana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1285690768
  • Provider Enumeration Date: 04/25/2006
  • Last Update Date: 01/09/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0840253480
  • Enrollment ID: I20041104001248

Medical Identifiers

Medical identifiers for Tessa V Perez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285690768NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics L4641 (Texas)Secondary
208000000XPediatrics 100592 (Montana)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Tessa V Perez allows following entities to bill medicare on her behalf.
Entity NameChildren's Physician Services Of South Texas
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568658227
PECOS PAC ID: 3678478872
Enrollment ID: O20040324001704
Entity NameAbc Pediatrics, P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710034962
PECOS PAC ID: 2668424623
Enrollment ID: O20050217000628

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Tessa V Perez is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Tessa V Perez, MD
3533 S Alameda St, Suite 303-joseph Sloan Medical Center,
Corpus Christi, TX 78411-1721

Ph: (361) 853-3222
Tessa V Perez, MD
3401 Avenue E,
Billings, MT 59102-6561

Ph: (406) 281-8700

Reviews and Comments


Pediatrics Doctors in Billings, MT

Jeffrey Carroll, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-7076    Fax: 406-237-7810
Dr. Caitlin Elizabeth Wainscott, MD
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Practice Location: 2800 10th Ave N, Billings, MT 59101
Phone: 406-657-4000    
Nicholas Larsen, MD
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Medicare: Medicare Enrolled
Practice Location: 3401 Avenue E, Billings, MT 59102
Phone: 406-281-8700    
Atty Moriarty,
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Medicare: Medicare Enrolled
Practice Location: 2800 10th Ave N, Billings, MT 59101
Phone: 406-238-2500    
Kari Barrett, MD
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Medicare: Medicare Enrolled
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-7076    Fax: 406-237-7810
Marian Elizabeth Kummer, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 1232 North 30th Street Suite 200, Billings, MT 59101
Phone: 406-238-6600    Fax: 406-238-6645
Michelle S. Pierson, MD
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Medicare: Medicare Enrolled
Practice Location: 2675 Central Ave, Billings, MT 59102
Phone: 406-238-2500    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.