Karen C. Halasan, MD
Pulmonary Disease Physician · Vernon, CT
Karen C. Halasan, MD is a pulmonary disease physician with a practice address in Vernon, Connecticut, and NPI 1508029836, issued on Jul 7, 2008. Check the license (Connecticut 052581, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen C. Halasan
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 052581 CT
Self-reported in NPPES; status is on the state search - Practice location
- 27 Naek RD, Vernon, CT 06066
- Phone
- (860) 875-2444
- Enumerated
- Jul 7, 2008
- Record last updated
- Feb 27, 2023
- Fax
- (860) 875-1952
- Medicare enrollment
- Enrolled (PECOS I20141209001206); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 280 in Connecticut → Look up another NPI →
Also registered at 27 Naek RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Donnelly, LCSWClinical Social Worker1639412984
- Alison Lewis, LCSWClinical Social Worker1164811170
- Christina McLaughlin, NPFamily Nurse Practitioner1477027191
- Diana Norris, APRNAcute Care Nurse Practitioner1982676557
- Faustinus Onyirimba, MDPulmonary Disease Physician1831145549
- Casey Smith-Speirs, LCSWClinical Social Worker1316330434
Verify Karen C. Halasan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 052581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average pulmonary disease physician in 2024
5,106 Medicare Part D claims for 616 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Trelegy Ellipta1,106 claims
- Albuterol Sulfate Hfa676 claims
- Montelukast Sodium501 claims
- Prednisone368 claims
- Azithromycin234 claims
- Levocetirizine Dihydrochloride210 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,031.16
88 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,806 providers of this specialty with any payment received $5,159.88 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 2 group practices
- Northeastern Pulmonary Associates LLCVernon, CT
- Nuvance Health Medical Practice CT IncNorwalk, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen C. Halasan among 280 pulmonary disease physician records in Connecticut
Karen C. Halasan, MD is one of 280 pulmonary disease physician records with a practice address in Connecticut. 85% 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 58% of them.
- NPI issued2008 · 58% of these records are older, 36% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2005 · median 2003 among the 210 with a school on file
- Record last updated2023 · 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 207RP1001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Connecticut
There are 280 pulmonary disease physician records in Connecticut.
All 280 in Connecticut → Every provider in Vernon → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Saima Ansari, M.D.Vernon, CT 060661841309192
- Mohammed Anwar, MDVernon, CT 060661669411104
- Faustinus Onyirimba, MDVernon, CT 060661831145549
- David Wasserstein, MDVernon, CT 060661841239068
- Michael Parker, MDSharon, CT 060691144382664
- Marcy Goldstein, M.D.New Britain, CT 060531912903808
- Amy Korwin, MDNew Britain, CT 060531619387818
- John Votto, D.O.New Britain, CT 060531518059757
Common questions
What is Karen C. Halasan, MD's NPI number?
Karen C. Halasan, MD's National Provider Identifier (NPI) is 1508029836, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karen C. Halasan, MD located?
The NPPES record lists a practice address at 27 Naek RD, Vernon, CT, 06066. Phone: (860) 875-2444. Providers update this record themselves, so call before visiting.
How can I verify Karen C. Halasan, MD's license?
NPPES lists Connecticut license number 052581, 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 Karen C. Halasan, MD prescribe under Medicare Part D?
In 2024, Karen C. Halasan, MD had 5,106 Medicare Part D claims for 616 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Karen C. Halasan, 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.