Melissa M Grier, MD - Medicare Obstetrics/gynecology in Pasadena, CA

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Melissa M Grier, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Pasadena, California. She went to University Of Michigan Medical School and graduated in 2001 and has 23 years of diverse experience with area of expertise as Obstetrics/gynecology. Her current practice location is 800 Fairmount Ave, Suite 410a, Pasadena, California. You can reach out to her office (for appointments etc.) via phone at (626) 440-0011.

Melissa M Grier is licensed to practice in California (license number A82969) 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 1861484420.

Contact Information

Melissa M Grier, MD
800 Fairmount Ave, Suite 410a,
Pasadena, CA 91105-3150
(626) 440-0011
(626) 628-3073

Map and Direction




Physician's Profile

Full NameMelissa M Grier
GenderFemale
SpecialityObstetrics/gynecology
Experience23 Years
Location800 Fairmount Ave, Pasadena, 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:
  • Melissa M Grier attended and graduated from University Of Michigan Medical School in 2001
  NPI Data:
  • NPI Number: 1861484420
  • Provider Enumeration Date: 08/19/2005
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 9931124534
  • Enrollment ID: I20051012001140

Medical Identifiers

Medical identifiers for Melissa M Grier such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861484420NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology A82969 (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. Melissa M Grier allows following entities to bill medicare on her behalf.
Entity NameBellefontaine Acquisition Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174723902
PECOS PAC ID: 7911094834
Enrollment ID: O20071024000470
Entity NameObhg California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215258892
PECOS PAC ID: 8729276795
Enrollment ID: O20101217000826
Entity NameDhp Of California Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679836084
PECOS PAC ID: 9234388745
Enrollment ID: O20120927000044

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. Melissa M Grier 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
Melissa M Grier, MD
800 Fairmount Ave, Suite 410a,
Pasadena, CA 91105-3150

Ph: (626) 440-0011		Melissa M Grier, MD
800 Fairmount Ave, Suite 410a,
Pasadena, CA 91105-3150

Ph: (626) 440-0011

Reviews and Comments


Obstetrics & Gynecology Doctors in Pasadena, CA

Dr. Jonathan Nei-kim Tam, M.D.
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Phone: 626-449-2800    Fax: 626-795-5145
John Gordon Wilcox, M.D.
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Medicare: Not Enrolled in Medicare
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Phone: 626-440-9161    Fax: 626-585-1603
Paul Sc Lin, M.D.
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Practice Location: 960 E Green St Ste L-60, Pasadena, CA 91106
Phone: 626-793-3339    Fax: 626-793-3118
Jeffrey Robert Nelson, D.O.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
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Phone: 626-440-9161    Fax: 626-585-1603
Dr. James Armen Macer, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 10 Congress St, Suite 400, Pasadena, CA 91105
Phone: 626-449-6223    Fax: 626-449-0035
Aaron J Epstein, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 50 Alessandro Pl Ste 210, Pasadena, CA 91105
Phone: 626-514-0060    Fax: 626-514-0062
Dr. George Toshinori Matsuda, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 10 Congress St, Suite 400, Pasadena, CA 91105
Phone: 626-449-6223    Fax: 626-449-0035

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.