Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Johann Nikolas Patlak

Individual provider Anesthesiology Physician · NPI 1871868075

Johann Nikolas Patlak practises Anesthesiology in Boston, Massachusetts. Graduated from University of Vermont College of Medicine in 2012, 14 years ago. Practices with Affinity Physicians LLC, a 734-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts and Rhode Island.

Years since qualifying
14
Trained at
University of Vermont College of Medicine
Licensed in
MA, RI
In the registry since
2012
Specialties on file
4
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Practice location Address checks out

330 Brookline Ave
Boston, MA 02215-5400
Phone: (617) 667-3112
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 593 Eddy St, Providence, RI 02903-4923 — (401) 444-5172
  • 101 Dudley Street, Providence, RI 02905-0290 — (401) 453-7950

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD16257 (RI)
Anesthesiology Physician Taxonomy 207L00000X · Licence 269792 (MA)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence 269792 (MA)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence MD16257 (RI)

Record details

NPI number1871868075
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 20, 2012
Last updated in NPPESFebruary 20, 2023
Certification dateFebruary 17, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Affinity Physicians Llc. — 734 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients198
Services billed 276 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Affinity Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 734 clinicians in the practice; 12 are shown here.

Other providers in Boston