Nicholas John Karis, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Baltimore, MD
Nicholas John Karis, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Baltimore, Maryland, and NPI 1518140946, issued on Dec 7, 2007. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Nicholas John Karis
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 261058 NY
036104895 IL
01065438A IN
Self-reported in NPPES; status is on the state search - Practice location
- 2435 W Belvedere Ave Ste 42, Baltimore, MD 21215
- Phone
- (410) 601-6491
- Enumerated
- Dec 7, 2007
- Record last updated
- Jan 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (410) 601-5835
- Medicaid IDs
- 200913030C IN
200913030D IN
03351631 NY
200913030A IN - Medicare enrollment
- Enrolled (PECOS I20191220000559); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 92 in Maryland → Look up another NPI →
Also registered at 2435 W Belvedere Ave Ste 42
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra Conway, PA-CSurgical Physician Assistant1366301236
- Mackenzie EbelingSurgical Physician Assistant1255994661
- Michelle Essman, PT, PA-CPhysician Assistant1871250936
- James Liu, MDSurgery Physician1730549882
- Farheen Qurashi, M.D.Surgical Critical Care Physician1831488162
- Nuri SeoPhysician Assistant1013558113
Verify Nicholas John Karis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sinai Hospital OF Baltimore, IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas John Karis among 92 thoracic surgery (cardiothoracic vascular surgery) physician records in Maryland
Nicholas John Karis, M.D. is one of 92 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Maryland. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 62% of them.
- NPI issued2007 · 62% of these records are older, 29% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1996 · median 1996 among the 46 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Maryland
There are 92 thoracic surgery (cardiothoracic vascular surgery) physician records in Maryland.
All 92 in Maryland → Every provider in Baltimore → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Peter Cho, M.D.Baltimore, MD 212151154371797
- Fayyaz Hashmi, M.D.Baltimore, MD 212151790757847
- Mark Katlic, M.D.Baltimore, MD 212151265492516
- Alejandro Sequeira, M.D.Baltimore, MD 212151861431835
- Michael Fiocco, M.D.Baltimore, MD 212181295738508
- Richard Heitmiller, M.D.Baltimore, MD 212181013970748
- John Laschinger, M.D.Baltimore, MD 212181699778969
- Luis Mispireta, M.D.Baltimore, MD 212181861447005
Common questions
What is Nicholas John Karis, M.D.'s NPI number?
Nicholas John Karis, M.D.'s National Provider Identifier (NPI) is 1518140946, issued on Dec 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas John Karis, M.D. located?
The NPPES record lists a practice address at 2435 W Belvedere Ave Ste 42, Baltimore, MD, 21215. Phone: (410) 601-6491. Providers update this record themselves, so call before visiting.
How can I verify Nicholas John Karis, M.D.'s license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Nicholas John Karis, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.6 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.
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.