Dr John Mark Geiss, DO - Medicare Osteopathic Manipulative Medicine in Santa Ana, CA

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Dr John Mark Geiss, DO is a medicare enrolled "Family Medicine" physician in Santa Ana, California. He graduated from medical school in 2011 and has 15 years of diverse experience with area of expertise as Osteopathic Manipulative Medicine. His current practice location is 5 Hutton Centre Dr Ste 950, Santa Ana, California. You can reach out to his office (for appointments etc.) via phone at (855) 434-7763.

Dr John Mark Geiss is licensed to practice in California (license number 20A12647) 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 1053651497.

Contact Information

Dr John Mark Geiss, DO
5 Hutton Centre Dr Ste 950,
Santa Ana, CA 92707-8744
(855) 434-7763
(949) 281-5550

Map and Direction




Physician's Profile

Full NameDr John Mark Geiss
GenderMale
SpecialityOsteopathic Manipulative Medicine
Experience15 Years
Location5 Hutton Centre Dr Ste 950, Santa Ana, 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:
  • Dr John Mark Geiss graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1053651497
  • Provider Enumeration Date: 02/21/2013
  • Last Update Date: 09/20/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5890933071
  • Enrollment ID: I20250926000369

Medical Identifiers

Medical identifiers for Dr John Mark Geiss such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053651497NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 20A12647 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Advent Healthcare Services, IncDiamond bar, CAHome health agency
Legacy Home Health, IncRancho cucamonga, CAHome health agency
Geiss Med Hospice LlcSanta ana, CAHospice
Sunny Hills Post AcuteLa mirada, CANursing home
Whittier Hills Health Care CtrWhittier, CANursing home
Imperial Healthcare CenterLa mirada, CANursing home
The Pavilion At Sunny HillsFullerton, CANursing home

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. Dr John Mark Geiss allows following entities to bill medicare on his behalf.
Entity NameJ M Geiss DO APC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063825289
PECOS PAC ID: 6103044078
Enrollment ID: O20250715000174
Entity NameSenior Doc New Mexico PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073402947
PECOS PAC ID: 2769987957
Enrollment ID: O20250926003747

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. Dr John Mark Geiss 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
Dr John Mark Geiss, DO
5 Hutton Centre Dr Ste 950,
Santa Ana, CA 92707-8744

Ph: (855) 434-7763		Dr John Mark Geiss, DO
5 Hutton Centre Dr Ste 950,
Santa Ana, CA 92707-8744

Ph: (855) 434-7763

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).

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.