Katja Von Tiesenhausen, M.D.
Internal Medicine Physician · East Boston, MA
Katja Von Tiesenhausen, M.D. is an internal medicine physician with a practice address in East Boston, Massachusetts, and NPI 1902870793, issued on Feb 16, 2006. Check the license (Massachusetts 216177, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Katja Von Tiesenhausen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 216177 MA
Self-reported in NPPES; status is on the state search - Practice location
- 10 Gove St, East Boston, MA 02128
- Phone
- (617) 569-5800
- Enumerated
- Feb 16, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (617) 568-4780
- Medicaid ID
- 2008904 MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 10 Gove St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heather Alfano, BSN, RNRegistered Nurse1598648792
- Ashley Altmann, CNP, DNPFamily Nurse Practitioner1558134619
- Fabiola Alvarez, MSWClinical Social Worker1598348005
- Olivia Amadon, LICSWClinical Social Worker1174987804
Verify Katja Von Tiesenhausen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 216177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Katja Von Tiesenhausen among 6,825 internal medicine physician records in Massachusetts
Katja Von Tiesenhausen, M.D. 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% 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).
32 internal medicine physician records list a practice address in East Boston
They are 32 of the 587 NPPES records with a practice address in East Boston, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in East Boston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pengwynne Blevins, M.D.East Boston, MA 021281316925795
- Jan Dohlman, M.D.East Boston, MA 021281528046943
- Frances Kuebler, M.D.East Boston, MA 021281588642912
- Tien-Hsin Lin, M.D.East Boston, MA 021281841279593
- Stylianos Maheras, MDEast Boston, MA 021281821062621
- Stephanie Quamo, M.D.East Boston, MA 021281457339731
- Vicki Rieder, M.D.East Boston, MA 021281992783278
- Suzanne Sarfaty, M.D.East Boston, MA 021281447238720
Common questions
What is Katja Von Tiesenhausen, M.D.'s NPI number?
Katja Von Tiesenhausen, M.D.'s National Provider Identifier (NPI) is 1902870793, issued on Feb 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katja Von Tiesenhausen, M.D. located?
The NPPES record lists a practice address at 10 Gove St, East Boston, MA, 02128. Phone: (617) 569-5800. Providers update this record themselves, so call before visiting.
How can I verify Katja Von Tiesenhausen, M.D.'s license?
NPPES lists Massachusetts license number 216177, 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 Katja Von Tiesenhausen, M.D. prescribe under Medicare Part D?
In 2024, Katja Von Tiesenhausen, M.D. had 11 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Katja Von Tiesenhausen, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.