John Charles Gustafson, MD - Medicare Obstetrics/gynecology in Ventura, CA

John Charles Gustafson, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Ventura, California. He went to University Of Rochester School Of Medicine And Dentistry and graduated in 1977 and has 47 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Community Memorial Health System, Ventura County Obstetric And Gynecologic Medical Group Inc and his current practice location is 2795 Loma Vista Rd, Ventura, California. You can reach out to his office (for appointments etc.) via phone at (805) 643-8695.

John Charles Gustafson is licensed to practice in California (license number G36782) 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 1003836016.

Contact Information

John Charles Gustafson, MD
2795 Loma Vista Rd,
Ventura, CA 93003-1544
(805) 643-8695
(805) 643-2087

Map and Direction




Physician's Profile

Full NameJohn Charles Gustafson
GenderMale
SpecialityObstetrics/gynecology
Experience47 Years
Location2795 Loma Vista Rd, Ventura, 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:
  • John Charles Gustafson attended and graduated from University Of Rochester School Of Medicine And Dentistry in 1977
  NPI Data:
  • NPI Number: 1003836016
  • Provider Enumeration Date: 07/20/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 9537106265
  • Enrollment ID: I20050520000481

Medical Identifiers

Medical identifiers for John Charles Gustafson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003836016NPI-NPPES
RHM08608FMedicaidCA
ZZZ82842ZMedicaidCA
RHM08609FMedicaidCA
050394OtherCABLUE CROSS
RHM18553HMedicaidCA
ZZT40394FMedicaidCA
951683892OtherCAOTHER INSURANCE
953152550OtherCAOTHER INSURANCE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology G36782 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Community Memorial Hospital San BuenaventuraVentura, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Community Memorial Health System9537155676164
Ventura County Obstetric And Gynecologic Medical Group Inc96381164602

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. John Charles Gustafson allows following entities to bill medicare on his behalf.
Entity NameCommunity Memorial Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215903018
PECOS PAC ID: 9537155676
Enrollment ID: O20040422001668
Entity NameVentura County Obstetric And Gynecologic Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083743652
PECOS PAC ID: 9638116460
Enrollment ID: O20050413000915

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. John Charles Gustafson 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
John Charles Gustafson, MD
2795 Loma Vista Rd,
Ventura, CA 93003-1544

Ph: (805) 643-8695
John Charles Gustafson, MD
2795 Loma Vista Rd,
Ventura, CA 93003-1544

Ph: (805) 643-8695

Reviews and Comments


Obstetrics & Gynecology Doctors in Ventura, CA

Dr. Kathryn Jones Sharma, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1591 Spinnaker Dr. Suite 201, Ventura, CA 93001
Phone: 805-515-3121    Fax: 805-620-7862
Dr. Roy Schneider, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 888 S Hill Rd, Ventura, CA 93003
Phone: 805-477-6464    Fax: 805-477-6498
Michael Rotas, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 200 S Wells Rd Ste 200, Ventura, CA 93004
Phone: 805-659-1740    
Dr. Srisawai Pattamakom, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2945 Loma Vista Rd, Ventura, CA 93003
Phone: 805-677-8003    Fax: 805-677-8404
Tajinder Bir Kaur, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2921 Saviers Road, Ventura, CA 93030
Phone: 805-487-5588    Fax: 805-487-5589
Dr. Lois Barnes, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 168 N Brent St Ste 302, Ventura, CA 93003
Phone: 805-652-6373    

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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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