Mark Siegel, MD
Pulmonary Disease Physician · New Haven, CT
Mark Siegel, MD is a pulmonary disease physician with a practice address in New Haven, Connecticut, and NPI 1700861598, issued on Dec 14, 2005. Check the license (Connecticut 033081, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark Siegel
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 033081 CT
Self-reported in NPPES; status is on the state search - Practice location
- 789 Howard Ave, New Haven, CT 06519
- Phone
- (203) 785-4198
- Enumerated
- Dec 14, 2005
- Record last updated
- Apr 5, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 737-5453
- Medicaid ID
- 001330810 CT
- Medicare enrollment
- Enrolled (PECOS I20080728000063); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1998
- 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 789 Howard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ali Abu-Alfa, MDNephrology Physician1841274610
- Amy Ahasic, MD, MPHPulmonary Disease Physician1619073210
- Kathleen Akgun, M.D.Internal Medicine Physician1114009917
- Syed Alam, MDUrology Physician1093202079
- Frederick Altice, MDInfectious Disease Physician1710960158
- Sophia Altin, MDInterventional Cardiology Physician1619152154
Verify Mark Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 033081Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
289 Medicare Part D claims for 45 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Albuterol Sulfate Hfa49 claims
- Prednisone29 claims
- Ipratropium Bromide23 claims
- Trelegy Ellipta19 claims
- Montelukast Sodium17 claims
- Symbicort16 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): 73.6 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
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Siegel among 280 pulmonary disease physician records in Connecticut
Mark Siegel, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 79% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1998 · median 2003 among the 210 with a school on file
- Record last updated2011 · 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 New Haven → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Amy Ahasic, MD, MPHNew Haven, CT 065191619073210
- Geoffrey Chupp, MDNew Haven, CT 065191811970577
- Lauren Cohn, MDNew Haven, CT 065191306821251
- Jack Elias, MDNew Haven, CT 065191053394114
- Lloyd Friedman, MDNew Haven, CT 065191245214287
- Mridu Gulati, MDNew Haven, CT 065191548243629
- Erica Herzog, MDNew Haven, CT 065191962485029
- Michael Imevbore, M.D.New Haven, CT 065191679660021
Common questions
What is Mark Siegel, MD's NPI number?
Mark Siegel, MD's National Provider Identifier (NPI) is 1700861598, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Siegel, MD located?
The NPPES record lists a practice address at 789 Howard Ave, New Haven, CT, 06519. Phone: (203) 785-4198. Providers update this record themselves, so call before visiting.
How can I verify Mark Siegel, MD's license?
NPPES lists Connecticut license number 033081, 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 Mark Siegel, MD prescribe under Medicare Part D?
In 2024, Mark Siegel, MD had 289 Medicare Part D claims for 45 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Mark Siegel, MD's MIPS final score?
The 2023 MIPS final score is 73.6 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.