Joel Thorp Katz, MD
Infectious Disease Physician · Boston, MA
Joel Thorp Katz, MD is an infectious disease physician with a practice address in Boston, Massachusetts, and NPI 1760448005, issued on Apr 25, 2006. Check the license (Massachusetts 78540, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joel Thorp Katz
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 78540 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-5776
- Enumerated
- Apr 25, 2006
- Record last updated
- Aug 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080603000669); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 487 in Massachusetts → Look up another NPI →
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
- Emily Aaronson, M.D.Emergency Medicine Physician1962791558
- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Joel Thorp Katz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 78540Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average infectious disease physician in 2024
1,835 Medicare Part D claims for 213 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium203 claims
- Lisinopril67 claims
- Levothyroxine Sodium60 claims
- Omeprazole60 claims
- Tamsulosin Hcl51 claims
- Metoprolol Succinate42 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
- Lown Medical Group PLLCChestnut Hill, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joel Thorp Katz among 487 infectious disease physician records in Massachusetts
Joel Thorp Katz, MD 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 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 47% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 2003 among the 296 with a school on file
- Record last updated2012 · 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
- Daniel Cohen, MDBoston, MA 021151972576858
- Todd Ellerin, M.D.Boston, MA 021151205837176
- Nicolas Issa, MDBoston, MA 021151346234622
- Dennis Kim, MD PHDBoston, MA 021151093790180
- Michael Klompas, MDBoston, MA 021151710955414
- Francisco Marty, MDBoston, MA 021151710940283
- Rebeca Plank, MDBoston, MA 021151598738973
- William Rodriguez, MDBoston, MA 021151851356869
Common questions
What is Joel Thorp Katz, MD's NPI number?
Joel Thorp Katz, MD's National Provider Identifier (NPI) is 1760448005, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel Thorp Katz, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-5776. Providers update this record themselves, so call before visiting.
How can I verify Joel Thorp Katz, MD's license?
NPPES lists Massachusetts license number 78540, 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 Joel Thorp Katz, MD prescribe under Medicare Part D?
In 2024, Joel Thorp Katz, MD had 1,835 Medicare Part D claims for 213 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.