John Stillson, MD - Medicare Family Medicine in Chula Vista, CA

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John Stillson, MD is a medicare enrolled "Family Medicine" physician in Chula Vista, California. His current practice location is 340 4th Ave Ste 2, Chula Vista, California. You can reach out to his office (for appointments etc.) via phone at (619) 422-8338.

John Stillson is licensed to practice in California (license number A202111) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1902556202.

Contact Information

John Stillson, MD
340 4th Ave Ste 2,
Chula Vista, CA 91910-3883
(619) 422-8338
Not Available

Map and Direction




Physician's Profile

Full NameJohn Stillson
GenderMale
SpecialityFamily Medicine
Location340 4th Ave Ste 2, Chula Vista, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1902556202
  • Provider Enumeration Date: 03/28/2022
  • Last Update Date: 08/27/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4688027030
  • Enrollment ID: I20240201001541

Medical Identifiers

Medical identifiers for John Stillson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902556202NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine U6089 (Texas)Secondary
207Q00000XFamily Medicine A202111 (California)Primary

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 Stillson allows following entities to bill medicare on his behalf.
Entity NameHamilton County Hospital District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326037607
PECOS PAC ID: 2062326234
Enrollment ID: O20031113000242
Entity NameConcord Medical Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083630610
PECOS PAC ID: 0446296818
Enrollment ID: O20050707000531
Entity NameConcord Medical Group Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750790762
PECOS PAC ID: 7810117223
Enrollment ID: O20141007002567

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 Stillson 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 Stillson, MD
340 4th Ave Ste 2,
Chula Vista, CA 91910-3883

Ph: () -		John Stillson, MD
340 4th Ave Ste 2,
Chula Vista, CA 91910-3883

Ph: (619) 422-8338

Reviews and Comments


Family Medicine Doctors in Chula Vista, CA

Soroosh Amanat, M.D.
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Andrew J Pasetti, D.O.
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Eladio Martinez, MD
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Practice Location: 299 J St, Chula Vista, CA 91910
Phone: 858-554-1212    Fax: 858-795-1195

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.