Lily Jenny Tsai, MD
Obstetrics & Gynecology Physician · Encinitas, CA
Lily Jenny Tsai, MD is an obstetrics & gynecology physician with a practice address in Encinitas, California, and NPI 1184633638, issued on Aug 5, 2006. Check the license (California A109827, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lily Jenny Tsai
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A109827 CA
Self-reported in NPPES; status is on the state search - Practice location
- 310 Santa FE Dr, Encinitas, CA 92024
- Phone
- (760) 633-7245
- Enumerated
- Aug 5, 2006
- Record last updated
- Mar 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110113000426); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 310 Santa FE Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Riaz Ahmed, M.D.Cardiovascular Disease Physician1376593871
- Dwight Cook, M.D.Family Medicine Physician1790879484
- Dina Fainman, MDObstetrics & Gynecology Physician1164724563
- Ali Fakhreddine, M.D.Gastroenterology Physician1336586908
- Mary Ann Lugod-Manalad, NP-CFamily Nurse Practitioner1447560339
- Rebecca Moore, RN., CDENutrition Education Nutritionist1467557405
Verify Lily Jenny Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109827Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
207 Medicare Part D claims for 70 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Progesterone44 claims
- Estradiol43 claims
- Estradiol (Twice Weekly)19 claims
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: $865.52
44 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- Scripps HealthEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lily Jenny Tsai among 5,088 obstetrics & gynecology physician records in California
Lily Jenny Tsai, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2006 · median 2004 among the 2,700 with a school on file
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Encinitas → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Katherine Austin, M.D.Encinitas, CA 920241003891482
- Robert Biter, M.D.Encinitas, CA 920241932169661
- Einat Duhamel, M.D.Encinitas, CA 920241114955119
- Dina Fainman, MDEncinitas, CA 920241164724563
- Douglas Fenton, M.D.Encinitas, CA 920241063402709
- Reema Ghatnekar, MDEncinitas, CA 920241245722990
- Natasha KamatEncinitas, CA 920241346795531
- Samina Makani, MDEncinitas, CA 920241790833572
Common questions
What is Lily Jenny Tsai, MD's NPI number?
Lily Jenny Tsai, MD's National Provider Identifier (NPI) is 1184633638, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lily Jenny Tsai, MD located?
The NPPES record lists a practice address at 310 Santa FE Dr, Encinitas, CA, 92024. Phone: (760) 633-7245. Providers update this record themselves, so call before visiting.
How can I verify Lily Jenny Tsai, MD's license?
NPPES lists California license number A109827, 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 Lily Jenny Tsai, MD prescribe under Medicare Part D?
In 2024, Lily Jenny Tsai, MD had 207 Medicare Part D claims for 70 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.