Tyler Schaeffer, MD
Internal Medicine Physician · Cambridge, MA
Tyler Schaeffer, MD is an internal medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1861875742, issued on Jul 9, 2015. Check the license (Massachusetts 1026600, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Tyler Schaeffer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 1026600 MA
3014147 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1439 Cambridge St, Cambridge, MA 02139
- Phone
- (617) 665-1068
- Enumerated
- Jul 9, 2015
- Record last updated
- Jun 2, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 1439 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tyler Schaeffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1026600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
211 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium12 claims
- Metformin Hcl12 claims
- Tresiba Flextouch U-20012 claims
- Insulin Lispro Kwikpen U-10011 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.
Tyler Schaeffer among 6,825 internal medicine physician records in Massachusetts
Tyler Schaeffer, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 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 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
300 internal medicine physician records list a practice address in Cambridge
They are 300 of the 5,145 NPPES records with a practice address in Cambridge, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Cambridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Baron, MDCambridge, MA 021391376503318
- John Brusch, MDCambridge, MA 021391639138449
- David Diamond, MDCambridge, MA 021391265411664
- Leigh Firn, MDCambridge, MA 021391194706507
- Agnes Graves, M.D.Cambridge, MA 021391932160934
- Howard Heller, MDCambridge, MA 021391508856287
- Michael Kane, MDCambridge, MA 021391376524769
- William Kettyle, MDCambridge, MA 021391306823414
Common questions
What is Tyler Schaeffer, MD's NPI number?
Tyler Schaeffer, MD's National Provider Identifier (NPI) is 1861875742, issued on Jul 9, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Tyler Schaeffer, MD located?
The NPPES record lists a practice address at 1439 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-1068. Providers update this record themselves, so call before visiting.
How can I verify Tyler Schaeffer, MD's license?
NPPES lists Massachusetts license number 1026600, 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 Tyler Schaeffer, MD prescribe under Medicare Part D?
In 2024, Tyler Schaeffer, MD had 211 Medicare Part D claims for 37 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.