Abigail Esther Schiff, MD, PHD
Rheumatology Physician · Boston, MA
Abigail Esther Schiff, MD, PHD is a rheumatology physician with a practice address in Boston, Massachusetts, and NPI 1417535519, issued on Mar 30, 2021. Check the license (Massachusetts 289018, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Abigail Esther Schiff
- Credential
- MD, PHD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 289018 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 30, 2021
- Record last updated
- Mar 27, 2026
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 343 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 Abigail Esther Schiff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 289018Check 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 rheumatology physician in 2024
399 Medicare Part D claims for 67 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone26 claims
- Amlodipine Besylate24 claims
- Atorvastatin Calcium17 claims
- Hydroxychloroquine Sulfate17 claims
- Methotrexate16 claims
- Levothyroxine Sodium13 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.
Abigail Esther Schiff among 343 rheumatology physician records in Massachusetts
Abigail Esther Schiff, MD, PHD is one of 343 rheumatology 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 2021, is newer than 98% of them.
- NPI issued2021 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Massachusetts
There are 343 rheumatology physician records in Massachusetts.
All 343 in Massachusetts → Every provider in Boston → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Paul Anderson, M.D., PH.D.Boston, MA 021151235127432
- Ronald Anderson, MDBoston, MA 021151154388478
- Michael Brenner, MDBoston, MA 021151699732909
- Jack Bukowski, MD PHDBoston, MA 021151639121544
- Jonathan Coblyn, MDBoston, MA 021151447200969
- Karen Costenbader, MD MPHBoston, MA 021151447216825
- I Cheng Ho, MDBoston, MA 021151346292133
- Elizabeth Karlson, MDBoston, MA 021151548228075
Common questions
What is Abigail Esther Schiff, MD, PHD's NPI number?
Abigail Esther Schiff, MD, PHD's National Provider Identifier (NPI) is 1417535519, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Abigail Esther Schiff, MD, PHD 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 Abigail Esther Schiff, MD, PHD's license?
NPPES lists Massachusetts license number 289018, 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 Abigail Esther Schiff, MD, PHD prescribe under Medicare Part D?
In 2024, Abigail Esther Schiff, MD, PHD had 399 Medicare Part D claims for 67 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.