Kristina K. Stjernfeldt, M.D.
Internal Medicine Physician · Wellesley, MA
Kristina K. Stjernfeldt, M.D. is an internal medicine physician with a practice address in Wellesley, Massachusetts, and NPI 1467638874, issued on Jan 15, 2008. Check the license (Massachusetts 216717, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kristina K. Stjernfeldt
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 216717 MA
Self-reported in NPPES; status is on the state search - Practice location
- 110 Worcester St., Wellesley, MA 02481
- Phone
- (617) 731-0058
- Enumerated
- Jan 15, 2008
- Record last updated
- Jan 9, 2026
- Fax
- (617) 731-0825
- Medicaid ID
- 2007410 MA
- Medicare enrollment
- Enrolled (PECOS I20080604000073); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 110 Worcester St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Levine, M.D.Internal Medicine Physician1396850350
Verify Kristina K. Stjernfeldt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 216717Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
857 Medicare Part D claims for 130 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Lisinopril52 claims
- Atorvastatin Calcium49 claims
- Amlodipine Besylate47 claims
- Levothyroxine Sodium36 claims
- Hydrochlorothiazide34 claims
- Rosuvastatin Calcium33 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: $162.25
8 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Personal Physicians Healthcare PCWellesley, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristina K. Stjernfeldt among 6,825 internal medicine physician records in Massachusetts
Kristina K. Stjernfeldt, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2000 · median 2004 among the 4,103 with a school on file
- Record last updated2026 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
81 internal medicine physician records list a practice address in Wellesley
They are 81 of the 1,117 NPPES records with a practice address in Wellesley, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Wellesley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mitchell Abramson, M.D.Wellesley Hills, MA 024811417952284
- Dea Angiolillo, M.D.Wellesley, MA 024811649241985
- Mary Barker, M.D.Wellesley, MA 024811215908132
- Peter Britton, M.D.Wellesley, MA 024811184695082
- Mary Brogan, M.D.Wellesley, MA 024811912987454
- Carol Burd, M.D.Wellesley, MA 024811114998036
- Nancy Corliss, MDWellesley, MA 024811699763482
- Steven Flier, M.D.Wellesley, MA 024811013905751
Common questions
What is Kristina K. Stjernfeldt, M.D.'s NPI number?
Kristina K. Stjernfeldt, M.D.'s National Provider Identifier (NPI) is 1467638874, issued on Jan 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Kristina K. Stjernfeldt, M.D. located?
The NPPES record lists a practice address at 110 Worcester St., Wellesley, MA, 02481. Phone: (617) 731-0058. Providers update this record themselves, so call before visiting.
How can I verify Kristina K. Stjernfeldt, M.D.'s license?
NPPES lists Massachusetts license number 216717, 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 Kristina K. Stjernfeldt, M.D. prescribe under Medicare Part D?
In 2024, Kristina K. Stjernfeldt, M.D. had 857 Medicare Part D claims for 130 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.