Jennifer St.john, DO
Endocrinology, Diabetes & Metabolism Physician · McKinney, TX
Jennifer St.john, DO is an endocrinology, diabetes & metabolism physician with a practice address in McKinney, Texas, and NPI 1861789828, issued on Jun 28, 2011. Check the license (Texas Q3810, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jennifer St.john
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- Q3810 TX
5119 OK
Self-reported in NPPES; status is on the state search - Practice location
- 5220 W. University Drive, McKinney, TX 75071
- Phone
- (469) 800-5400
- Enumerated
- Jun 28, 2011
- Record last updated
- Jun 22, 2023
- Fax
- (469) 800-5388
- Medicare enrollment
- Enrolled (PECOS I20151201001170); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 743 in Texas → Look up another NPI →
Also registered at 5220 W. University Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sheena Black, MDOrthopaedic Surgery Physician1609165919
Verify Jennifer St.john in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q3810Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,609 Medicare Part D claims for 364 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Levothyroxine Sodium325 claims
- Metformin Hcl Er201 claims
- Ozempic189 claims
- Metformin Hcl134 claims
- Tresiba Flextouch U-200116 claims
- Jardiance96 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: $1,190.57
72 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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
- Healthtexas Provider NetworkDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer St.john among 743 endocrinology, diabetes & metabolism physician records in Texas
Jennifer St.john, DO 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 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 31% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2010 · median 2004 among the 560 with a school on file
- Record last updated2023 · 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 McKinney → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Anthony Chuang, D.O.McKinney, TX 750711891082327
- Jane Lee, MDMcKinney, TX 750711871156018
- Sana Ullah, M.D.McKiney, TX 750711871786467
- Vivienne Yoon, M.D.McKinney, TX 750711689899221
- Muhammad Siddiqui, M.D.McKinney, TX 750691194011999
- Cathlyn Anderson, MDSugar Land, TX 750751023030269
- Rosemarie Lajara, MDPlano, TX 750751780862102
- Sindhu Igala, M.D.Prosper, TX 750781265760771
Common questions
What is Jennifer St.john, DO's NPI number?
Jennifer St.john, DO's National Provider Identifier (NPI) is 1861789828, issued on Jun 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer St.john, DO located?
The NPPES record lists a practice address at 5220 W. University Drive, McKinney, TX, 75071. Phone: (469) 800-5400. Providers update this record themselves, so call before visiting.
How can I verify Jennifer St.john, DO's license?
NPPES lists Texas license number Q3810, 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 Jennifer St.john, DO prescribe under Medicare Part D?
In 2024, Jennifer St.john, DO had 2,609 Medicare Part D claims for 364 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.