Carl Mayer Grushkin, MD - Medicare Nephrology in Los Angeles, CA

Carl Mayer Grushkin, MD is a medicare enrolled "Pediatrics - Pediatric Nephrology" physician in Los Angeles, California. He went to University Of Southern California Keck School Of Medicine and graduated in 1966 and has 58 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Childrens Hospital Los Angeles Medical Group Inc and his current practice location is 4650 Sunset Blvd., Ms# 40, Los Angeles, California. You can reach out to his office (for appointments etc.) via phone at (323) 361-2102.

Carl Mayer Grushkin is licensed to practice in California (license number G13885) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1023101557.

Contact Information

Carl Mayer Grushkin, MD
4650 Sunset Blvd., Ms# 40,
Los Angeles, CA 90027-6062
(323) 361-2102
(323) 361-1829

Map and Direction




Physician's Profile

Full NameCarl Mayer Grushkin
GenderMale
SpecialityNephrology
Experience58 Years
Location4650 Sunset Blvd., Los Angeles, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Carl Mayer Grushkin attended and graduated from University Of Southern California Keck School Of Medicine in 1966
  NPI Data:
  • NPI Number: 1023101557
  • Provider Enumeration Date: 10/02/2006
  • Last Update Date: 05/14/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 4981690674
  • Enrollment ID: I20040420001247

Medical Identifiers

Medical identifiers for Carl Mayer Grushkin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023101557NPI-NPPES
00G138850MedicaidCA
00G138850G07OtherCACALOPTIMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0210XPediatrics - Pediatric Nephrology G13885 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Children's Hosp Of Los AngelesLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Childrens Hospital Los Angeles Medical Group Inc0143126920134

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. Carl Mayer Grushkin allows following entities to bill medicare on his behalf.
Entity NameChildrens Hospital Los Angeles Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265530653
PECOS PAC ID: 0143126920
Enrollment ID: O20031211000522

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. Carl Mayer Grushkin 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
Carl Mayer Grushkin, MD
6430 Sunset Blvd., Suite 600,
Los Angeles, CA 90028-7900

Ph: (323) 361-2337
Carl Mayer Grushkin, MD
4650 Sunset Blvd., Ms# 40,
Los Angeles, CA 90027-6062

Ph: (323) 361-2102

Reviews and Comments


Pediatrics Doctors in Los Angeles, CA

Dr. Mark Hendrik Corden, M.D.
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Practice Location: 4650 W Sunset Blvd, Los Angeles, CA 90027
Phone: 323-361-8893    Fax: 323-361-1814
Ms. Roberta Miyeko Kato, MD
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Neema Izadi, MD, MS
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Practice Location: 4650 W Sunset Blvd # 75, Los Angeles, CA 90027
Phone: 323-361-2501    Fax: 323-361-1191
Jennifer Stephanie Menjivar-lopez, MD
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Medicare: Medicare Enrolled
Practice Location: 3671 W 6th St Ste A, Los Angeles, CA 90020
Phone: 213-235-2500    

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).

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