Karen Choong
Endocrinology, Diabetes & Metabolism Physician · Norwell, MA
Karen Choong is an endocrinology, diabetes & metabolism physician with a practice address in Norwell, Massachusetts, and NPI 1245498211, issued on May 27, 2008. Check the license (Massachusetts 222002, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Karen Choong
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 222002 MA
Self-reported in NPPES; status is on the state search - Practice location
- 143 Longwater Dr, Norwell, MA 02061
- Phone
- (781) 878-5200
- Enumerated
- May 27, 2008
- Record last updated
- Jan 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140325000623); 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 →
Also registered at 143 Longwater Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalil Alleyne, MDFamily Medicine Physician1003092081
- Mia Ames, PA-CPhysician Assistant1407331440
- Jennifer Amon, CPNPPediatric Nurse Practitioner1679557987
- Erin Anderson, PAPhysician Assistant1164838926
- Kimberly Azulay-Williams, FNPFamily Nurse Practitioner1427671601
- Anna Barbosa, MDInternal Medicine Physician1396960977
Verify Karen Choong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 222002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,598 Medicare Part D claims for 334 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Levothyroxine Sodium248 claims
- Alendronate Sodium144 claims
- Ozempic142 claims
- Jardiance82 claims
- Synthroid81 claims
- Trulicity80 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: $28.49
1 payment: 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
- Mass General Brigham Medical Group Suburban Massachusetts IncNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Choong among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Karen Choong 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 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2004 · median 2002 among the 378 with a school on file
- Record last updated2014 · 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 Norwell → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Deepak Sanan, M.D.Norwood, MA 020621902803950
- Barry Wayler, M.D.Norwood, MA 020621578510152
- Howard Fogel, M.D.Stoughton, MA 020721578618906
- Turner Bledsoe, M.D.Hingham, MA 020431679693733
- Padma Balasubramanian, M.D.Foxborough, MA 020351649233933
- Ziad Hinedi, M.D.Canton, MA 020211841481942
- Monica Gomberg, MDBoston, MA 021091780983148
- Florencia Halperin, M.D.Boston, MA 021091083804926
Common questions
What is Karen Choong's NPI number?
Karen Choong's National Provider Identifier (NPI) is 1245498211, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karen Choong located?
The NPPES record lists a practice address at 143 Longwater Dr, Norwell, MA, 02061. Phone: (781) 878-5200. Providers update this record themselves, so call before visiting.
How can I verify Karen Choong's license?
NPPES lists Massachusetts license number 222002, 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 Karen Choong prescribe under Medicare Part D?
In 2024, Karen Choong had 1,598 Medicare Part D claims for 334 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.