Dr Andrew C Johnston, MD - Medicare Internal Medicine in Carmel, CA

Dr Andrew C Johnston, MD is a medicare enrolled "Internal Medicine" physician in Carmel, California. He went to Northwestern University Feinberg Medical School and graduated in 1986 and has 38 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Open Door Community Health Centers and his current practice location is 275 Crossroads Blvd, A, Carmel, California. You can reach out to his office (for appointments etc.) via phone at (831) 718-9701.

Dr Andrew C Johnston is licensed to practice in California (license number G88534) 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 1710931019.

Contact Information

Dr Andrew C Johnston, MD
275 Crossroads Blvd, A,
Carmel, CA 93923-8684
(831) 718-9701
Not Available

Map and Direction




Physician's Profile

Full NameDr Andrew C Johnston
GenderMale
SpecialityInternal Medicine
Experience38 Years
Location275 Crossroads Blvd, Carmel, 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 Andrew C Johnston attended and graduated from Northwestern University Feinberg Medical School in 1986
  NPI Data:
  • NPI Number: 1710931019
  • Provider Enumeration Date: 05/20/2006
  • Last Update Date: 10/30/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 2860539756
  • Enrollment ID: I20091026000627

Medical Identifiers

Medical identifiers for Dr Andrew C Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710931019NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 25495 (Arizona)Secondary
207R00000XInternal Medicine G88534 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalEureka, CAHospital
Redwood Memorial HospitalFortuna, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Open Door Community Health Centers943606748586

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 Andrew C Johnston allows following entities to bill medicare on his behalf.
Entity NameOpen Door Community Health Centers
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497840656
PECOS PAC ID: 9436067485
Enrollment ID: O20040414000890
Entity NameCounty Of Monterey
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457303356
PECOS PAC ID: 2466345632
Enrollment ID: O20050712001287

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 Andrew C Johnston 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 Andrew C Johnston, MD
670 9th St Ste 203,
Arcata, CA 95521-6249

Ph: (707) 826-8633
Dr Andrew C Johnston, MD
275 Crossroads Blvd, A,
Carmel, CA 93923-8684

Ph: (831) 718-9701

Reviews and Comments


Internal Medicine Doctors in Carmel, CA

Matthew Neoh,
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 275 The Crossroads Blvd Ste A, Carmel, CA 93923
Phone: 831-718-9701    Fax: 831-886-3649
Walter Ludwig Holz Jr., MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 22615 Carmel Center Place, Suite 103, Carmel, CA 93923
Phone: 831-624-1864    Fax: 831-624-4327
Dr. Jaya Prakash Sugunaraj, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 275 The Crossroads Blvd Ste A, Carmel, CA 93923
Phone: 831-718-9701    
Dr. Anthony L. Filly, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27201 Prado Del Sol, Carmel, CA 93923
Phone: 831-236-9888    
Dr. Keiko Saito, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 275 Crossroads Blvd, A, Carmel, CA 93923
Phone: 831-718-9701    Fax: 831-886-1529
Dr. Carl Ramond Bergstrom, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 26366 Carmel Rancho Lane, Ste H, Carmel, CA 93923
Phone: 831-624-3077    Fax: 831-624-8662
Jessitasinghna Albert Messiah Dhas, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 275 The Crossroads Blvd Ste A, Carmel, CA 93923
Phone: 831-718-9701    

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.