Bjorn Ringstad, MD
Internal Medicine Physician · North Haven, CT
Bjorn Ringstad, MD is an internal medicine physician with a practice address in North Haven, Connecticut, and NPI 1699707448, issued on Jul 6, 2006. Check the license (Connecticut 020407, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Bjorn Ringstad
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 020407 CT
Self-reported in NPPES; status is on the state search - Practice location
- 12 Village St, North Haven, CT 06473
- Phone
- (203) 865-6400
- Enumerated
- Jul 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (203) 865-0195
- Medicaid ID
- 001204072 CT
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 12 Village St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nina Burkhardt, PAPhysician Assistant1548372816
- James Marsh, MDOrthopaedic Surgery Physician1033178207
- Shari SpeclandMassage Therapist1528545308
Verify Bjorn Ringstad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 020407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,271 Medicare Part D claims for 494 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium261 claims
- Amlodipine Besylate134 claims
- Levothyroxine Sodium124 claims
- Lisinopril116 claims
- Rosuvastatin Calcium86 claims
- Hydrochlorothiazide85 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.
Bjorn Ringstad among 2,623 internal medicine physician records in Connecticut
Bjorn Ringstad, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 61% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 internal medicine physician records list a practice address in North Haven
They are 14 of the 539 NPPES records with a practice address in North Haven, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in North Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dianne Defusco, MDNorth Haven, CT 064731063584787
- Jennifer Dilungo, PA-CNorth Haven, CT 064731972649812
- John Fomeche, MDNorth Haven, CT 064731336886431
- Lorenzo Galante, MDNorth Haven, CT 064731023180726
- Jeffrey Gimbel, M.D.North Haven, CT 064731861436735
- Gidon Goldenberg, M.D.North Haven, CT 064731689619041
- Georgia Kelley, M.D.North Haven, CT 064731013945211
- Maida KhanNorth Haven, CT 064731972165751
Common questions
What is Bjorn Ringstad, MD's NPI number?
Bjorn Ringstad, MD's National Provider Identifier (NPI) is 1699707448, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bjorn Ringstad, MD located?
The NPPES record lists a practice address at 12 Village St, North Haven, CT, 06473. Phone: (203) 865-6400. Providers update this record themselves, so call before visiting.
How can I verify Bjorn Ringstad, MD's license?
NPPES lists Connecticut license number 020407, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bjorn Ringstad, MD prescribe under Medicare Part D?
In 2024, Bjorn Ringstad, MD had 2,271 Medicare Part D claims for 494 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.