Lillian Yvonne Segarra, M.D.
Psychiatry Physician · San Juan, PR
Lillian Yvonne Segarra, M.D. is a psychiatry physician with a practice address in San Juan, Puerto Rico, and NPI 1760588909, issued on Sep 15, 2006. Check the license (Puerto Rico 11509, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lillian Yvonne Segarra
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 11509 PR
Self-reported in NPPES; status is on the state search - Practice location
- #76 Second Street, San Juan, PR 00926
- Phone
- (787) 755-7327
- Enumerated
- Sep 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250313001260); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 403 in Puerto Rico → Look up another NPI →
Verify Lillian Yvonne Segarra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 11509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average psychiatry physician in 2024
309 Medicare Part D claims for 32 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam58 claims
- Sertraline Hcl30 claims
- Trazodone Hcl29 claims
- Quetiapine Fumarate25 claims
- Escitalopram Oxalate20 claims
- Mirtazapine19 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.
Bills Medicare through one group practice
- Recinto DE Ciencias MedicasRio Piedras, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lillian Yvonne Segarra among 403 psychiatry physician records in Puerto Rico
Lillian Yvonne Segarra, M.D. is one of 403 psychiatry physician records with a practice address in Puerto Rico. 76% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 47% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Graduated1989 · median 1995 among the 121 with a school on file
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 psychiatry physician records list a practice address in San Juan
They are 168 of the 8,960 NPPES records with a practice address in San Juan, and 403 psychiatry physician records in Puerto Rico.
All 403 in Puerto Rico → Every provider in San Juan → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Deborah Acosta Ramirez, MDSan Juan, PR 009261275643959
- Carlos Aviles-Roig, MDSan Juan, PR 009261407926793
- Roberto Coira, MDSan Juan, PR 009261376509968
- Nereida Feliciano, MDSan Juan, PR 009261528010725
- Jose Franco, M.D.San Juan, PR 009261114122199
- Frances Fuster Astor, MDSan Juan, PR 009261528631389
- William Lugo, MDSan Juan, PR 009261023267085
- Emma Negron-Mella, MDSan Juan, PR 009261003950049
Common questions
What is Lillian Yvonne Segarra, M.D.'s NPI number?
Lillian Yvonne Segarra, M.D.'s National Provider Identifier (NPI) is 1760588909, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lillian Yvonne Segarra, M.D. located?
The NPPES record lists a practice address at #76 Second Street, San Juan, PR, 00926. Phone: (787) 755-7327. Providers update this record themselves, so call before visiting.
How can I verify Lillian Yvonne Segarra, M.D.'s license?
NPPES lists Puerto Rico license number 11509, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Lillian Yvonne Segarra, M.D. prescribe under Medicare Part D?
In 2024, Lillian Yvonne Segarra, M.D. had 309 Medicare Part D claims for 32 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.