Dr Karen Reynolds Johnston, MD - Medicare Pathology in Palo Alto, CA

Dr Karen Reynolds Johnston, MD is a medicare enrolled "General Practice" physician in Palo Alto, California. She graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Pathology. She is a member of the group practice Wound Md Pc and her current practice location is 478 E Charleston Rd, Palo Alto, California. You can reach out to her office (for appointments etc.) via phone at (650) 380-9149.

Dr Karen Reynolds Johnston is licensed to practice in California (license number G67445) 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 1326518325.

Contact Information

Dr Karen Reynolds Johnston, MD
478 E Charleston Rd,
Palo Alto, CA 94306-4235
(650) 380-9149
Not Available

Map and Direction




Physician's Profile

Full NameDr Karen Reynolds Johnston
GenderFemale
SpecialityPathology
Experience36 Years
Location478 E Charleston Rd, Palo Alto, 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:
  • Dr Karen Reynolds Johnston graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1326518325
  • Provider Enumeration Date: 12/03/2018
  • Last Update Date: 01/28/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7810226420
  • Enrollment ID: I20220818000761

Medical Identifiers

Medical identifiers for Dr Karen Reynolds Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326518325NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology G67445 (California)Secondary
208D00000XGeneral Practice G67445 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Wound Md Pc88203145295

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 Karen Reynolds Johnston allows following entities to bill medicare on her behalf.
Entity NameWound Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942606744
PECOS PAC ID: 8820314529
Enrollment ID: O20150223001584

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 Karen Reynolds 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 Karen Reynolds Johnston, MD
478 E Charleston Rd,
Palo Alto, CA 94306-4235

Ph: (650) 813-1471
Dr Karen Reynolds Johnston, MD
478 E Charleston Rd,
Palo Alto, CA 94306-4235

Ph: (650) 380-9149

Reviews and Comments


General Practice Doctors in Palo Alto, CA

Tram Nguyen,
General Practice
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Phone: 506-723-5511    
Dr. Alan Bernard Kantor, M.D.
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Medicare: Medicare Enrolled
Practice Location: 3801 Miranda Ave Bldg 5, Palo Alto, CA 94304
Phone: 650-493-5000    
Ashley Shatola,
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Medicare: Medicare Enrolled
Practice Location: 401 Quarry Rd, Palo Alto, CA 94304
Phone: 650-723-5511    
Kelly Grant, RD, NC
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Medicare: Not Enrolled in Medicare
Practice Location: 359 Middlefield Rd, Palo Alto, CA 94301
Phone: 650-323-7345    
Dr. Kurt Stephenson Kadon, M.D.
General Practice
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Dr. Edward Arthur Weiss, MD
General Practice
Medicare: May Accept Medicare Assignments
Practice Location: 900 Welch Road, Suite 208, Palo Alto, CA 94304
Phone: 650-326-6560    Fax: 650-321-2324
Dr. Alan Jacobs, M.D., PH.D.
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 3721 Ortega Ct, Palo Alto, CA 94303
Phone: 650-575-5260    Fax: 650-230-7130

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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