Janet Jang, MD
Endocrinology, Diabetes & Metabolism Physician · Lynn, MA
Janet Jang, MD is an endocrinology, diabetes & metabolism physician with a practice address in Lynn, Massachusetts, and NPI 1699116939, issued on Jul 15, 2013. Check the license (Massachusetts 281244, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Janet Jang
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 281244 MA
125064192 IL
Self-reported in NPPES; status is on the state search - Practice location
- 480 Lynnfield St Ste 2, Lynn, MA 01904
- Phone
- (781) 593-3400
- Enumerated
- Jul 15, 2013
- Record last updated
- Apr 25, 2022
- Fax
- (781) 477-1105
- Medicare enrollment
- Enrolled (PECOS I20191015000155); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Verify Janet Jang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 281244Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
4,181 Medicare Part D claims for 508 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Jardiance362 claims
- Ozempic324 claims
- Levothyroxine Sodium320 claims
- Lantus Solostar238 claims
- Metformin Hcl220 claims
- Trulicity217 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: $151.30
2 payments; by number, the most common kind was food and beverage; the largest payer was Insulet Corporation. 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
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janet Jang among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Janet Jang, MD is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 75% of them.
- NPI issued2013 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2002 among the 378 with a school on file
- Record last updated2022 · 60% 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 Massachusetts 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 Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Lynn → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Paul Copeland, MDLynn, MA 019041821044512
- Samuel Coffin, MDSwampscott, MA 019071417452723
- Dominica Costello, D.O.Amesbury, MA 019131033144084
- Arpita Pitroda, M.D.Beverly, MA 019151902814643
- Nada Kerouz, MDWinchester, MA 018901578531505
- Thelma Avanessian, MDDanvers, MA 019231922636299
- Susan Choe, D.O.Danvers, MA 019231952662710
- Michael Gordon, MDDanvers, MA 019231407811334
Common questions
What is Janet Jang, MD's NPI number?
Janet Jang, MD's National Provider Identifier (NPI) is 1699116939, issued on Jul 15, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Janet Jang, MD located?
The NPPES record lists a practice address at 480 Lynnfield St Ste 2, Lynn, MA, 01904. Phone: (781) 593-3400. Providers update this record themselves, so call before visiting.
How can I verify Janet Jang, MD's license?
NPPES lists Massachusetts license number 281244, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Janet Jang, MD prescribe under Medicare Part D?
In 2024, Janet Jang, MD had 4,181 Medicare Part D claims for 508 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.