Ashley Nieves Gregg, MD - Medicare Pediatrics in Calabasas, CA

Ashley Nieves Gregg, MD is a medicare enrolled "Pediatrics" physician in Calabasas, California. Her current practice location is 26585 Agoura Rd Ste 360, Calabasas, California. You can reach out to her office (for appointments etc.) via phone at (818) 592-2320.

Ashley Nieves Gregg is licensed to practice in California (license number A162709) 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 1144640152.

Contact Information

Ashley Nieves Gregg, MD
26585 Agoura Rd Ste 360,
Calabasas, CA 91302-1958
(818) 592-2320
(818) 880-8014

Map and Direction




Physician's Profile

Full NameAshley Nieves Gregg
GenderFemale
SpecialityPediatrics
Location26585 Agoura Rd Ste 360, Calabasas, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144640152
  • Provider Enumeration Date: 04/17/2014
  • Last Update Date: 03/02/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0244580447
  • Enrollment ID: I20180910002390

Medical Identifiers

Medical identifiers for Ashley Nieves Gregg such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144640152NPI-NPPES
294167OtherNYNY STATE LICENSE
A162079OtherCACA STATE LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics A162709 (California)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. Ashley Nieves Gregg allows following entities to bill medicare on her behalf.
Entity NameWeill Medical College Of Cornell
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245355270
PECOS PAC ID: 6800709023
Enrollment ID: O20040505001073

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. Ashley Nieves Gregg 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
Ashley Nieves Gregg, MD
5767 W Century Blvd Ste 400,
Los Angeles, CA 90045-5631

Ph: () -
Ashley Nieves Gregg, MD
26585 Agoura Rd Ste 360,
Calabasas, CA 91302-1958

Ph: (818) 592-2320

Reviews and Comments


Pediatrics Doctors in Calabasas, CA

Dr. Tanya Remer Altmann, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 23586 Calabasas Rd Ste 107, Calabasas, CA 91302
Phone: 818-914-4429    Fax: 844-882-5036
Dr. Goli Mirzaie, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 26585 Agoura Rd Ste 360, Calabasas, CA 91302
Phone: 818-592-2320    
Dr. Jennifer Leigh Stiekema, DNP, CPNP-BC, MS, RN
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 5000 Parkway Calabasas Ste 203, Calabasas, CA 91302
Phone: 818-651-9210    Fax: 818-584-7934
Dr. Celia Cruz, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 26585 Agoura Rd Ste 360, Calabasas, CA 91302
Phone: 818-592-2320    
Marina Burstein, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 24013 Ventura Blvd, Suite 101, Calabasas, CA 91302
Phone: 818-222-2443    Fax: 818-222-2491
Bethany Stafford, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 5000 Parkway Calabasas Ste 203, Calabasas, CA 91302
Phone: 818-651-9210    Fax: 818-584-7934

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.