Denise Lam Mah, FNP-BC - Medicare Nurse Practitioner in Fontana, CA

Denise Lam Mah, FNP-BC is a medicare enrolled "Nurse Practitioner - Family" in Fontana, California. She graduated from nursing school in 2017 and has 7 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice City Of Hope Medical Foundation and her current practice location is 9961 Sierra Ave, Fontana, California. You can reach out to her office (for appointments etc.) via phone at (909) 396-7812.

Denise Lam Mah is licensed to practice in California (license number 95008068) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1083114508.

Contact Information

Denise Lam Mah, FNP-BC
9961 Sierra Ave,
Fontana, CA 92335-6720
(909) 396-7812
Not Available

Map and Direction




Provider's Profile

Full NameDenise Lam Mah
GenderFemale
SpecialityNurse Practitioner
Experience7 Years
Location9961 Sierra Ave, Fontana, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Denise Lam Mah graduated from nursing school in 2017
  NPI Data:
  • NPI Number: 1083114508
  • Provider Enumeration Date: 02/21/2018
  • Last Update Date: 05/24/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5890604532
  • Enrollment ID: I20180809005795

Medical Identifiers

Medical identifiers for Denise Lam Mah such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083114508NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163WE0900XRegistered Nurse - Enterostomal Therapy 95008068 (California)Secondary
363LF0000XNurse Practitioner - Family 95008068 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
City Of Hope Medical Foundation3779751656690

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. Denise Lam Mah allows following entities to bill medicare on her behalf.
Entity NameCity Of Hope Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871886366
PECOS PAC ID: 3779751656
Enrollment ID: O20110720000244
Entity NameMinghsun Liu Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518309368
PECOS PAC ID: 6608004775
Enrollment ID: O20140117000335

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. Denise Lam Mah 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
Denise Lam Mah, FNP-BC
Po Box 512185,
Los Angeles, CA 90051-0185

Ph: () -
Denise Lam Mah, FNP-BC
9961 Sierra Ave,
Fontana, CA 92335-6720

Ph: (909) 396-7812

Reviews and Comments


Nurse Practitioner Nurses in Fontana, CA

Cherry Patricia Thangaraj, FNP-C
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Practice Location: 7965 Sierra Ave, Fontana, CA 92336
Phone: 909-356-4459    
Yael Steinfeld, NP
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Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-3910    
Scott Swartz, NP
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Phone: 909-427-3910    
Cory Michael Layvas, AGACNP-BC
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Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-5000    
Lisa Marie Hanson,
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Medicare: Not Enrolled in Medicare
Practice Location: 16465 Sierra Lakes Pkwy Ste 275, Fontana, CA 92336
Phone: 909-823-8000    
Fabiola Sianturi, MSN, FNP
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Medicare: Accepting Medicare Assignments
Practice Location: 8110 Mango Ave, Fontana, CA 92335
Phone: 909-854-0430    
Nadia Le Flore,
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Medicare: Medicare Enrolled
Practice Location: 17051 Sierra Lakes Pkwy # 103, Fontana, CA 92336
Phone: 909-770-1000    

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.