Conor McColgan Stack, M.D.
Infectious Disease Physician · Boston, MA
Conor McColgan Stack, M.D. is an infectious disease physician with a practice address in Boston, Massachusetts, and NPI 1083976807, issued on Jun 8, 2012. Check the license (Massachusetts 266559, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Conor McColgan Stack
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 266559 MA
252843 MA
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Ave, Boston, MA 02215
- Phone
- (617) 667-7000
- Enumerated
- Jun 8, 2012
- Record last updated
- Aug 15, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180509000257); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 487 in Massachusetts → Look up another NPI →
Also registered at 330 Brookline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Najma Abdullahi, MD, MPHStudent in an Organized Health Care Education/Training Program1669213054
- Elisabeth AbelesStudent in an Organized Health Care Education/Training Program1528659760
Verify Conor McColgan Stack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 266559Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average infectious disease physician in 2024
359 Medicare Part D claims for 82 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Biktarvy49 claims
- Cefadroxil37 claims
- Cephalexin37 claims
- Amoxicillin36 claims
- Levofloxacin17 claims
- Dovato15 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.
Bills Medicare through one group practice
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Conor McColgan Stack among 487 infectious disease physician records in Massachusetts
Conor McColgan Stack, M.D. is one of 487 infectious disease physician records with a practice address in Massachusetts. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 77% of them.
- NPI issued2012 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2012 · median 2003 among the 296 with a school on file
- Record last updated2018 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Massachusetts
There are 487 infectious disease physician records in Massachusetts.
All 487 in Massachusetts → Every provider in Boston → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Dan Barouch, MD PHDBoston, MA 022151992786974
- Sigall Bell, M.D.Boston, MA 022151225143118
- Clyde Crumpacker, M.D.Boston, MA 022151780786103
- George Eliopoulos, M.D.Boston, MA 022151891732087
- Camilla Graham, M.D.Boston, MA 022151952416919
- Adolf Karchmer, M.D.Boston, MA 022151508890278
- Kwan Kew Lai, MDBoston, MA 022151881618353
- Todd Pollack, M.D.Boston, MA 022151720026081
Common questions
What is Conor McColgan Stack, M.D.'s NPI number?
Conor McColgan Stack, M.D.'s National Provider Identifier (NPI) is 1083976807, issued on Jun 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Conor McColgan Stack, M.D. located?
The NPPES record lists a practice address at 330 Brookline Ave, Boston, MA, 02215. Phone: (617) 667-7000. Providers update this record themselves, so call before visiting.
How can I verify Conor McColgan Stack, M.D.'s license?
NPPES lists Massachusetts license number 266559, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Conor McColgan Stack, M.D. prescribe under Medicare Part D?
In 2024, Conor McColgan Stack, M.D. had 359 Medicare Part D claims for 82 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
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.