Rosemarie Lajara, MD
Endocrinology, Diabetes & Metabolism Physician · Plano, TX
Rosemarie Lajara, MD is an endocrinology, diabetes & metabolism physician with a practice address in Plano, Texas, and NPI 1780862102, issued on Feb 7, 2008. Check the license (Texas J3835, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rosemarie Lajara
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- J3835 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1708 Coit RD, Plano, TX 75075
- Phone
- (832) 237-3500
- Enumerated
- Feb 7, 2008
- Record last updated
- Jul 21, 2022
- Fax
- (832) 237-0200
- Medicare enrollment
- Enrolled (PECOS I20081205000367); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 743 in Texas → Look up another NPI →
Also registered at 1708 Coit RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Enriquez, RD, LD, CDERegistered Dietitian1104247790
- Pragya Gupta, MDPulmonary Disease Physician1124331988
- Virginia Harrier, RN, CDEDiabetes Educator Registered Nurse1376915561
- Chloe JanecekBehavior Technician1285304899
- Hussein Kara AliBehavior Technician1316630585
- Amy LambersonBehavior Technician1790494615
Verify Rosemarie Lajara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J3835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,788 Medicare Part D claims for 208 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Ozempic153 claims
- Levothyroxine Sodium146 claims
- Mounjaro92 claims
- Metformin Hcl91 claims
- Jardiance82 claims
- Toujeo Max Solostar55 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: $126,201.98
248 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Southern Endocrinology AssociatesMesquite, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rosemarie Lajara among 743 endocrinology, diabetes & metabolism physician records in Texas
Rosemarie Lajara, MD is one of 743 endocrinology, diabetes & metabolism physician records with a practice address in Texas. 87% 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 52% of them.
- NPI issued2008 · 52% of these records are older, 41% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1983 · median 2004 among the 560 with a school on file
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Texas
There are 743 endocrinology, diabetes & metabolism physician records in Texas.
All 743 in Texas → Every provider in Plano → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Cathlyn Anderson, MDSugar Land, TX 750751023030269
- Sindhu Igala, M.D.Prosper, TX 750781265760771
- Anthony Chuang, D.O.McKinney, TX 750711891082327
- Jane Lee, MDMcKinney, TX 750711871156018
- Jennifer St.john, DOMcKinney, TX 750711861789828
- Sana Ullah, M.D.McKiney, TX 750711871786467
- Vivienne Yoon, M.D.McKinney, TX 750711689899221
- Muhammad Siddiqui, M.D.McKinney, TX 750691194011999
Common questions
What is Rosemarie Lajara, MD's NPI number?
Rosemarie Lajara, MD's National Provider Identifier (NPI) is 1780862102, issued on Feb 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Rosemarie Lajara, MD located?
The NPPES record lists a practice address at 1708 Coit RD, Plano, TX, 75075. Phone: (832) 237-3500. Providers update this record themselves, so call before visiting.
How can I verify Rosemarie Lajara, MD's license?
NPPES lists Texas license number J3835, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rosemarie Lajara, MD prescribe under Medicare Part D?
In 2024, Rosemarie Lajara, MD had 1,788 Medicare Part D claims for 208 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.