Roger H. Karlin, MD
Internal Medicine Physician · New Fairfield, CT
Roger H. Karlin, MD is an internal medicine physician with a practice address in New Fairfield, Connecticut, and NPI 1700894177, issued on Aug 3, 2006. Check the license (Connecticut 19394, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Roger H. Karlin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 19394 CT
Self-reported in NPPES; status is on the state search - Practice location
- 88 Route 37, New Fairfield, CT 06812
- Phone
- (203) 746-2436
- Enumerated
- Aug 3, 2006
- Record last updated
- Jan 11, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (203) 746-3205
- Medicare enrollment
- Enrolled (PECOS I20050414001059); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 1976
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 88 Route 37
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patrick Fettinger, DPMPodiatrist1750372272
- Helene Karlin, PHDPsychologist1801959416
Verify Roger H. Karlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 19394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average internal medicine physician in 2024
7,043 Medicare Part D claims for 492 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 219 claims were for opioids.
Most prescribed
- Amlodipine Besylate430 claims
- Levothyroxine Sodium351 claims
- Rosuvastatin Calcium343 claims
- Atorvastatin Calcium311 claims
- Metoprolol Succinate206 claims
- Ezetimibe174 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $732.50
33 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Roger H. Karlin among 2,623 internal medicine physician records in Connecticut
Roger H. Karlin, 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 fileYes · 63% of these records are
- Graduated1976 · median 2004 among the 1,646 with a school on file
- Record last updated2010 · 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).
6 internal medicine physician records list a practice address in New Fairfield
They are 6 of the 122 NPPES records with a practice address in New Fairfield, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in New Fairfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Biles, M.D.New Fairfield, CT 068121275557167
- Peter Rostenberg, MDNew Fairfield, CT 068121538272117
- Patrice Thornton, MDNew Fairfield, CT 068121205824455
- Dorothy Williams, M.D.New Fairfield, CT 068121962439794
- Gary Yacono, M.D.New Fairfield, CT 068121740298322
- Michael Gerstenfeld, M.D.Danbury, CT 068111740311208
- Sadikshya Bhandari, MDDanbury, CT 068101942995931
- Tapasya Bhusal, M.DDanbury, CT 068101427747658
Common questions
What is Roger H. Karlin, MD's NPI number?
Roger H. Karlin, MD's National Provider Identifier (NPI) is 1700894177, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger H. Karlin, MD located?
The NPPES record lists a practice address at 88 Route 37, New Fairfield, CT, 06812. Phone: (203) 746-2436. Providers update this record themselves, so call before visiting.
How can I verify Roger H. Karlin, MD's license?
NPPES lists Connecticut license number 19394, 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 Roger H. Karlin, MD prescribe under Medicare Part D?
In 2024, Roger H. Karlin, MD had 7,043 Medicare Part D claims for 492 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Roger H. Karlin, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.