Adam Christopher Janik, M.D.
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician · Castro Valley, CA
Adam Christopher Janik, M.D. is a hospice and palliative medicine (physical medicine & rehabilitation) physician with a practice address in Castro Valley, California, and NPI 1982960449, issued on Apr 9, 2012. Check the license (California A143854, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adam Christopher Janik
- Credential
- M.D.
- Primary taxonomy
- Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician 2081H0002X
- License number
- A143854 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20103 Lake Chabot RD, Castro Valley, CA 94546
- Phone
- (510) 889-5082
- Enumerated
- Apr 9, 2012
- Record last updated
- Aug 16, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160801002723); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (physical medicine & rehabilitation) physician records → All 15 in California → Look up another NPI →
Also registered at 20103 Lake Chabot RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexei AdanEmergency Medicine Physician1679968978
- Maria Ait Rais, M.D.Hospitalist Physician1811239304
- Latricia Amadeo, RNRegistered Nurse1003407115
- Sandhya Ashokkumar, MDCritical Care Medicine (Internal Medicine) Physician1457913402
- Oluwaseyi Balasire, M.D.Hospitalist Physician1003235243
- Rachna Bali, DOHospitalist Physician1346541554
Verify Adam Christopher Janik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A143854Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Bay Medical FoundationCastro Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Christopher Janik among 15 hospice and palliative medicine (physical medicine & rehabilitation) physician records in California
Adam Christopher Janik, M.D. is one of 15 hospice and palliative medicine (physical medicine & rehabilitation) physician records with a practice address in California. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 73% of them.
- NPI issued2012 · 73% of these records are older, 20% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Record last updated2016 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081H0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician providers in California
There are 15 hospice and palliative medicine (physical medicine & rehabilitation) physician records in California.
All 15 in California → Every provider in Castro Valley → Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician nationwide →
The 8 hospice and palliative medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes
- Lawrence Boly, MDMartinez, CA 945531053537852
- James Stark, M.D.San Francisco, CA 941091235342247
- Jo Ann Lauer, C.M.T.P.T.01San Jose, CA 951251427266725
- Catherine WestSanta Rosa, CA 954011528280559
- Neil Soni, M.D.Fountain Valley, CA 927081306054150
- Joshua CastilloBanning, CA 922201205610854
- Negin Salimi, D.O.San Diego, CA 921031326215815
- Christopher Bui, MDPasadena, CA 911061376858829
Common questions
What is Adam Christopher Janik, M.D.'s NPI number?
Adam Christopher Janik, M.D.'s National Provider Identifier (NPI) is 1982960449, issued on Apr 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Adam Christopher Janik, M.D. located?
The NPPES record lists a practice address at 20103 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 889-5082. Providers update this record themselves, so call before visiting.
How can I verify Adam Christopher Janik, M.D.'s license?
NPPES lists California license number A143854, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.