Rochelle Zak, MD - Medicare Sleep Medicine in San Francisco, CA

Rochelle Zak, MD is a medicare enrolled "Psychiatry & Neurology - Sleep Medicine" physician in San Francisco, California. She graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Sleep Medicine. She is a member of the group practice Ucsf Medical Group Business Services, Regents Of The University Of California and her current practice location is 2330 Post St., #420, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 885-7886.

Rochelle Zak is licensed to practice in California (license number G64567) 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 1285606863.

Contact Information

Rochelle Zak, MD
2330 Post St., #420,
San Francisco, CA 94115
(415) 885-7886
(415) 885-3650

Map and Direction




Physician's Profile

Full NameRochelle Zak
GenderFemale
SpecialitySleep Medicine
Experience37 Years
Location2330 Post St., San Francisco, 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:
  • Rochelle Zak graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1285606863
  • Provider Enumeration Date: 02/07/2006
  • Last Update Date: 03/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8729032123
  • Enrollment ID: I20101109000250

Medical Identifiers

Medical identifiers for Rochelle Zak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285606863NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 176119 (New York)Secondary
2084S0012XPsychiatry & Neurology - Sleep Medicine 039291 (Connecticut)Secondary
2084S0012XPsychiatry & Neurology - Sleep Medicine G64567 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ucsf Medical Group Business Services37794978701064
Regents Of The University Of California4284547274563

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. Rochelle Zak allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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. Rochelle Zak 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
Rochelle Zak, MD
2330 Post St., 420,
San Francisco, CA 94115

Ph: (415) 885-7886
Rochelle Zak, MD
2330 Post St., #420,
San Francisco, CA 94115

Ph: (415) 885-7886

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.

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