Bjorn Ringstad, MD
NPI 1699707448 · Internal Medicine Physician · North Haven, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bjorn Ringstad, MD is a Internal Medicine Physician provider in North Haven, CT (NPI 1699707448).
Provider details
- NPI number
- 1699707448
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 020407 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
143 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $134 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 23 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 22 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 21 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 15 | $16 |
Typical Medicare-allowed amounts for these services range $8–$134 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 261 | 135 |
| Amlodipine Besylate | 134 | 75 |
| Levothyroxine Sodium | 124 | 54 |
| Lisinopril | 116 | 68 |
| Rosuvastatin Calcium | 86 | 37 |
| Hydrochlorothiazide | 85 | 54 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Bjorn Ringstad's NPI number?
- Bjorn Ringstad's National Provider Identifier (NPI) is 1699707448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bjorn Ringstad's specialty?
- Bjorn Ringstad is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bjorn Ringstad located?
- Bjorn Ringstad's practice location on file with NPPES is 12 Village St, North Haven, CT 06473.
- What is Bjorn Ringstad's phone number?
- The practice phone number listed in the NPPES registry for Bjorn Ringstad is (203) 865-6400.
- Does Bjorn Ringstad accept Medicare?
- Bjorn Ringstad is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bjorn Ringstad's NPI active?
- Yes — Bjorn Ringstad's NPI (1699707448) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.