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

Lydia Alana Flier, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1104273911

Lydia Alana Flier, MD practises Internal Medicine in Cambridge, Massachusetts. Qualified in 2016, 10 years ago. Practices with Select Rehabilitation, LLC, a 2,028-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
10
Licensed in
MA
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Cambridge, MA

Additional practice locations (1)

  • 330 Brookline Ave, Boston, MA 02215-5400 — (617) 667-7000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 279387 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 268239 (MA)

Record details

NPI number1104273911
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 22, 2016
Last updated in NPPESOctober 15, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Select Rehabilitation, Llc — 2028 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients318
Services billed 1,574 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Select Rehabilitation, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2028 clinicians in the practice; 12 are shown here.

Other providers in Cambridge