Sonya Koo Christianson, MD
Hospice and Palliative Medicine (Family Medicine) Physician · San Diego, CA
Sonya Koo Christianson, MD is a hospice and palliative medicine (family medicine) physician with a practice address in San Diego, California, and NPI 1871751073, issued on May 26, 2008. Check the license (California A103850, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonya Koo Christianson
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Family Medicine) Physician 207QH0002X
- License number
- A103850 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4077 5TH Ave, San Diego, CA 92103
- Phone
- (858) 678-6550
- Enumerated
- May 26, 2008
- Record last updated
- Aug 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100629000089); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (family medicine) physician records → All 128 in California → Look up another NPI →
Also registered at 4077 5TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Agueda, NP-CFamily Nurse Practitioner1124578117
- Michael Amadeo, N.P.Family Nurse Practitioner1376947648
- Joseph Anderson, PHARMDPharmacist1053125914
- Leslie Arias, SLPSpeech-Language Pathologist1417808205
- Aleda Barr, RNPsychiatric/Mental Health Registered Nurse1134254048
- Geraldine Crowle, PH.D.Clinical Psychologist1043345622
Verify Sonya Koo Christianson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103850Check 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
- Scripps Health Inpatient Providers Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonya Koo Christianson among 128 hospice and palliative medicine (family medicine) physician records in California
Sonya Koo Christianson, MD is one of 128 hospice and palliative medicine (family medicine) physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 40% of them.
- NPI issued2008 · 40% of these records are older, 54% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2009 among the 80 with a school on file
- Record last updated2020 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QH0002X 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 (Family Medicine) Physician providers in California
There are 128 hospice and palliative medicine (family medicine) physician records in California.
All 128 in California → Every provider in San Diego → Hospice and Palliative Medicine (Family Medicine) Physician nationwide →
The 8 hospice and palliative medicine (family medicine) physician records with the nearest ZIP codes
- Gary Buckholz, MDSan Diego, CA 921031174601702
- Kyle Edmonds, M.D., FAAHPMSan Diego, CA 921031003044728
- Kira Skavinski, D.O.San Diego, CA 921031073763546
- Cynthia Williams, D.O.San Diego, CA 921031932124153
- Heidi Yeung, M.D.San Diego, CA 921031316125198
- Aung Naing Min, MDSan Diego, CA 921081548820228
- Johanna Estrada, M.D.San Diego, CA 921211255698155
- Ruth Goodson, MDSan Diego, CA 921211619466059
Common questions
What is Sonya Koo Christianson, MD's NPI number?
Sonya Koo Christianson, MD's National Provider Identifier (NPI) is 1871751073, issued on May 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sonya Koo Christianson, MD located?
The NPPES record lists a practice address at 4077 5TH Ave, San Diego, CA, 92103. Phone: (858) 678-6550. Providers update this record themselves, so call before visiting.
How can I verify Sonya Koo Christianson, MD's license?
NPPES lists California license number A103850, 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.