Mariam Hasan, MD - Medicare Internal Medicine in Oakland, CA

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Mariam Hasan, MD is a medicare enrolled "Internal Medicine" physician in Oakland, California. She graduated from medical school in 2005 and has 21 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Onclick Healthcare Incorporated and her current practice location is 1411 E 31st St, Oakland, California. You can reach out to her office (for appointments etc.) via phone at (408) 332-1755.

Mariam Hasan is licensed to practice in California (license number A124405) 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 1851604847.

Contact Information

Mariam Hasan, MD
1411 E 31st St,
Oakland, CA 94602-1018
(408) 332-1755
Not Available

Map and Direction




Physician's Profile

Full NameMariam Hasan
GenderFemale
SpecialityInternal Medicine
Experience21 Years
Location1411 E 31st St, Oakland, 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:
  • Mariam Hasan graduated from medical school in 2005
  NPI Data:
  • NPI Number: 1851604847
  • Provider Enumeration Date: 07/19/2010
  • Last Update Date: 04/14/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 7517109127
  • Enrollment ID: I20130812000306

Medical Identifiers

Medical identifiers for Mariam Hasan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851604847NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A124405 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Healing Care Hospice, IncDowney, CAHospice
All Care HospiceGlendale, CAHospice
Contra Costa Regional Medical CenterMartinez, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Onclick Healthcare Incorporated983051126063

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. Mariam Hasan allows following entities to bill medicare on her behalf.
Entity NameAlameda Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740332931
PECOS PAC ID: 3779494521
Enrollment ID: O20031110000764
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679642326
PECOS PAC ID: 9032023171
Enrollment ID: O20031126000292
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831268580
PECOS PAC ID: 9032023171
Enrollment ID: O20040123000822
Entity NameCalifornia Emergency Physicians Medical Group A Professional Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215365218
PECOS PAC ID: 3274763875
Enrollment ID: O20140227000392
Entity NameSuperior Hospitalist Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780047712
PECOS PAC ID: 1456650928
Enrollment ID: O20160504002343
Entity NameGlobal Mobile Medical Alliances, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467960310
PECOS PAC ID: 4688934458
Enrollment ID: O20180216000940
Entity NameMobile Physicians Medical Allied Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184199275
PECOS PAC ID: 7810233491
Enrollment ID: O20190326000349
Entity NamePinehurst Hospitalist Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710516364
PECOS PAC ID: 4183055387
Enrollment ID: O20200501002086
Entity NameOnclick Healthcare Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467074963
PECOS PAC ID: 9830511260
Enrollment ID: O20200612000107
Entity NameInnovi Healthcare Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528689965
PECOS PAC ID: 6103248901
Enrollment ID: O20200624002413
Entity NameCesca Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962011734
PECOS PAC ID: 5193127728
Enrollment ID: O20210706001086
Entity NameOpenloop Healthcare Partners California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659042331
PECOS PAC ID: 9234529850
Enrollment ID: O20211214000311
Entity NameBoundless Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588704449
PECOS PAC ID: 4880117902
Enrollment ID: O20250331000786

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. Mariam Hasan 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
Mariam Hasan, MD
1411 E 31st St,
Oakland, CA 94602-1018

Ph: () -		Mariam Hasan, MD
1411 E 31st St,
Oakland, CA 94602-1018

Ph: (408) 332-1755

Reviews and Comments


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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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