Betty S Ahn, MD - Medicare Emergency Medicine in Pasadena, CA

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Betty S Ahn, MD is a medicare enrolled "Emergency Medicine" physician in Pasadena, California. Her current practice location is 100 W California Blvd, Pasadena, California. You can reach out to her office (for appointments etc.) via phone at (626) 397-3445.

Betty S Ahn is licensed to practice in California (license number A77991) 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 1902862089.

Contact Information

Betty S Ahn, MD
100 W California Blvd,
Pasadena, CA 91105-3010
(626) 397-3445
(626) 397-5643

Map and Direction




Physician's Profile

Full NameBetty S Ahn
GenderFemale
SpecialityEmergency Medicine
Location100 W California Blvd, Pasadena, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1902862089
  • Provider Enumeration Date: 04/26/2006
  • Last Update Date: 06/05/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 3375513542
  • Enrollment ID: I20040727000919

Medical Identifiers

Medical identifiers for Betty S Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902862089NPI-NPPES
00A779910MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A77991 (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. Betty S Ahn allows following entities to bill medicare on her behalf.
Entity NameSherman Oaks Emergency Medical Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518904150
PECOS PAC ID: 1557377736
Enrollment ID: O20060224000406
Entity NamePetrel Emergency Physicians, A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154734663
PECOS PAC ID: 2264658525
Enrollment ID: O20140722000913

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. Betty S Ahn 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
Betty S Ahn, MD
Po Box 60259,
Los Angeles, CA 90060-0259

Ph: (626) 447-0296		Betty S Ahn, MD
100 W California Blvd,
Pasadena, CA 91105-3010

Ph: (626) 397-3445

Reviews and Comments


Emergency Medicine Doctors in Pasadena, CA

Dr. David Michael Ulick, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Department Of Emergency Medicine, Pasadena, CA 91109
Phone: 626-397-5106    
Dr. Nicholas Withrow Greco, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Pasadena, CA 91105
Phone: 626-397-5112    
Dr. Paul Chahn Rhee, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Pasadena, CA 91105
Phone: 626-397-3445    Fax: 626-397-5643
Dr. Asbasia Aboelkhair Mikhail, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Pasadena, CA 91105
Phone: 626-397-3445    Fax: 626-397-5643
Dr. Charles Walter Bugg, M.D., PH.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Pasadena, CA 91125
Phone: 626-397-5116    
Asa Kristian Scott, ATC
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2560 Lambert Dr, Pasadena, CA 91107
Phone: 626-616-2622    
Dr. Joanna Maack, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 W California Blvd, Pasadena, CA 91105
Phone: 917-929-7870    

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.