NPPES file of Aug 9, 2026

Kristofer Nathaniel Tupper, D.O.

Sports Medicine (Family Medicine) Physician · Fairfield, CT

Kristofer Nathaniel Tupper, D.O. is a sports medicine (family medicine) physician with a practice address in Fairfield, Connecticut, and NPI 1306378104, issued on Mar 30, 2017. Check the license (Connecticut 69436, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306378104
Name
Kristofer Nathaniel Tupper
Credential
D.O.
Primary taxonomy
Sports Medicine (Family Medicine) Physician 207QS0010X
License numbers
69436 CT
LP04070 RI
Self-reported in NPPES; status is on the state search
Practice location
305 Black Rock Tpke, Fairfield, CT 06825
Phone
(203) 337-2600
Enumerated
Mar 30, 2017
Record last updated
Jan 21, 2022
Fax
(203) 337-2611
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest sports medicine (family medicine) physician records → All 15 in Connecticut → Look up another NPI →

Also registered at 305 Black Rock Tpke

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rizwan Ahmad, MDSports Medicine (Family Medicine) Physician1831477330
  2. Cindy Anderson, PA-CSurgical Physician Assistant1558381582
  3. Sharon Andruskiwec, PT CHTHand Physical Therapist1669696803
  4. John Awad, MDOrthopaedic Surgery Physician1447280052
  5. Henry Backe, MDOrthopaedic Hand Surgery Physician1457396145
  6. Roberto Balado, PA-CPhysician Assistant1811708589

Verify Kristofer Nathaniel Tupper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 69436    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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88% fewer Medicare Part D claims than the average sports medicine (family medicine) physician in 2024

102 Medicare Part D claims for 65 beneficiaries, against an average of 855 among the 2,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Kristofer Tupper102
  2. Specialty average855

Most prescribed

  1. Meloxicam42 claims
  2. Methylprednisolone25 claims
  3. Naproxen21 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 70.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score63.2
  2. Costout of 100 · 30%51.9
  3. Promoting interoperabilityout of 100 · 25%85.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Kristofer Nathaniel Tupper among 15 sports medicine (family medicine) physician records in Connecticut

Kristofer Nathaniel Tupper, D.O. is one of 15 sports medicine (family medicine) physician records with a practice address in Connecticut. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 87% of them.

  • NPI issued2017 · 87% of these records are older, 7% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileNo · 80% of these records are
  • Record last updated2022 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QS0010X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Family Medicine) Physician providers in Connecticut

There are 15 sports medicine (family medicine) physician records in Connecticut.

All 15 in Connecticut → Every provider in Fairfield → Sports Medicine (Family Medicine) Physician nationwide →

The 8 sports medicine (family medicine) physician records with the nearest ZIP codes

  1. Rizwan Ahmad, MDFairfield, CT 068251831477330
  2. Jean-Paul Lucke, D.O.Fairfield, CT 068251396056834
  3. Moha Ahuja, D.O.Greenwich, CT 068311255587218
  4. Mark Carrasco, M.D.Brookfield, CT 068041386271427
  5. Tiana Larsow, MDBridgeport, CT 066061841533858
  6. Steffen Finkelstein, APRNNew Haven, CT 065201659317998
  7. David Wang, MDHamden, CT 065181548243066
  8. Stephanie Schmidt, MDMiddletown, CT 064571366854499

Common questions

What is Kristofer Nathaniel Tupper, D.O.'s NPI number?

Kristofer Nathaniel Tupper, D.O.'s National Provider Identifier (NPI) is 1306378104, issued on Mar 30, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Kristofer Nathaniel Tupper, D.O. located?

The NPPES record lists a practice address at 305 Black Rock Tpke, Fairfield, CT, 06825. Phone: (203) 337-2600. Providers update this record themselves, so call before visiting.

How can I verify Kristofer Nathaniel Tupper, D.O.'s license?

NPPES lists Connecticut license number 69436, 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 Kristofer Nathaniel Tupper, D.O. prescribe under Medicare Part D?

In 2024, Kristofer Nathaniel Tupper, D.O. had 102 Medicare Part D claims for 65 beneficiaries; the average among sports medicine (family medicine) physician prescribers was 855. Part D covers Medicare prescriptions only.

What is Kristofer Nathaniel Tupper, D.O.'s MIPS final score?

The 2023 MIPS final score is 70.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.