Mark Yeejen Liu, DO
Family Medicine Physician · Rocklin, CA
Mark Yeejen Liu, DO is a family medicine physician with a practice address in Rocklin, California, and NPI 1710967914, issued on Jan 23, 2006. Check the license (California 20A22527, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Yeejen Liu
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20A22527 CA
DOS-1207 HI
OP1714 WA
Self-reported in NPPES; status is on the state search - Practice location
- 6644 Lonetree Blvd Ste 300, Rocklin, CA 95765
- Phone
- (916) 721-2977
- Enumerated
- Jan 23, 2006
- Record last updated
- Apr 16, 2025
- Fax
- (916) 659-9629
- Medicaid IDs
- 632712-01 HI
8449845 WA - Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 6644 Lonetree Blvd Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Huma Khan, MDFamily Medicine Physician1922585777
Verify Mark Yeejen Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
88 Medicare Part D claims for 40 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $16.62
1 payment: food and beverage; the largest payer was Indivior Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark Yeejen Liu among 17,133 family medicine physician records in California
Mark Yeejen Liu, DO is one of 17,133 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family medicine physician records list a practice address in Rocklin
They are 30 of the 1,575 NPPES records with a practice address in Rocklin, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Rocklin → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gagandeep Azad, M.DRocklin, CA 957651558522466
- Amandeep Bajwa, MDRocklin, CA 957651215265947
- Erwin Victor Boco, M.D.Rocklin, CA 957651851657936
- Himdip Dehal, M.D.Rocklin, CA 957651346409067
- Ngoc-Truc Duong, M.D.Rocklin, CA 957651215362629
- Sharnjit Grewal, M.D.Rocklin, CA 957651831290477
- Deepa Jayakrishnan, MDRocklin, CA 957651861872608
- Thuy Rose Nguyen, DORocklin, CA 957651124258116
Common questions
What is Mark Yeejen Liu, DO's NPI number?
Mark Yeejen Liu, DO's National Provider Identifier (NPI) is 1710967914, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Yeejen Liu, DO located?
The NPPES record lists a practice address at 6644 Lonetree Blvd Ste 300, Rocklin, CA, 95765. Phone: (916) 721-2977. Providers update this record themselves, so call before visiting.
How can I verify Mark Yeejen Liu, DO's license?
NPPES lists California license number 20A22527, 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.
How much does Mark Yeejen Liu, DO prescribe under Medicare Part D?
In 2024, Mark Yeejen Liu, DO had 88 Medicare Part D claims for 40 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.