Jonathan Morris Siden
Obstetrics & Gynecology Physician · Boston, MA
Jonathan Morris Siden is an obstetrics & gynecology physician with a practice address in Boston, Massachusetts, and NPI 1093340168, issued on Mar 9, 2020. Check the license (Massachusetts 292986, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jonathan Morris Siden
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 292986 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-5500
- Enumerated
- Mar 9, 2020
- Record last updated
- Jun 27, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 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.
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Verify Jonathan Morris Siden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 292986Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
49 Medicare Part D claims for 31 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Oxycodone Hcl11 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.
Jonathan Morris Siden among 1,127 obstetrics & gynecology physician records in Massachusetts
Jonathan Morris Siden is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2022 · 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 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Massachusetts
There are 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Boston → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Rachel Ashby, MDBoston, MA 021151295792984
- Robert Barbieri, M.D.Boston, MA 021151548253958
- Daniela Carusi, MD MSCBoston, MA 021151639136096
- Caryn Dutton, MDBoston, MA 021151982663530
- Roxane Gardner, MDBoston, MA 021151609851476
- Alisa Goldberg, MD MPHBoston, MA 021151013968551
- Neil Horowitz, MDBoston, MA 021151629050919
- Natasha Johnson, MDBoston, MA 021151134108590
Common questions
What is Jonathan Morris Siden's NPI number?
Jonathan Morris Siden's National Provider Identifier (NPI) is 1093340168, issued on Mar 9, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Morris Siden located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-5500. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Morris Siden's license?
NPPES lists Massachusetts license number 292986, 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 Jonathan Morris Siden prescribe under Medicare Part D?
In 2024, Jonathan Morris Siden had 49 Medicare Part D claims for 31 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.