Doctor profile · Federal record

Dr. Feyza Erenler, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Boston, MA

  • NPI 1013395375
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
800 Washington St
Boston, MA 02111
(617) 636-5689

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
September 13, 2024
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Massachusetts #274861

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013395375. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
442
Distinct HCPCS
9
Medicare allowed
$47,220
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 100 55 $184
99215 Established patient office or other outpatient visit, 40-54 minutes 78 58 $151
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 57 22 $37
99214 Established patient office or other outpatient visit, 30-39 minutes 46 27 $136
99214 Established patient office or other outpatient visit, 30-39 minutes 37 30 $102
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 37 19 $53
83036 Hemoglobin a1c level 35 22 $9
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 35 23 $36
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 17 13 $85

In context: peer comparison

Among 97 peers in this city , average services per provider: 116. This provider delivers 3.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
653
Patients
149
Total drug cost
$380,910
Drug Type Claims Patients Total cost
Trulicity (Dulaglutide) Brand 99 25 $150,140
Levothyroxine Sodium Generic 87 31 $1,842
Ozempic (Semaglutide) Brand 86 19 $117,569
Metformin Hcl Generic 66 23 $1,029
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 50 16 $27,653
Novolog Flexpen (Insulin Aspart) Brand 37 13 $31,788
Unifine Pentips (Pen Needle, Diabetic) Brand 31 0 $1,563
Methimazole Generic 28 0 $347
Pioglitazone Hcl Generic 27 0 $1,134
Ultra-Fine Mini Pen Needle (Pen Needle, Diabetic) Brand 26 11 $2,947

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Feyza Erenler's medical specialty?
Dr. Feyza Erenler practices Endocrinology, Diabetes & Metabolism Physician in Boston, MA.
Where does Dr. Feyza Erenler practice?
Dr. Feyza Erenler practices at 800 Washington St, Boston, MA 02111. Office phone: 6176365689.
What is Dr. Feyza Erenler's NPI?
Dr. Feyza Erenler's National Provider Identifier (NPI) is 1013395375, issued by NPPES.
Does Dr. Feyza Erenler accept Medicare assignment?
Yes. Dr. Feyza Erenler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Feyza Erenler commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.