Doctor profile · Federal record

Dr. Lyle Mitzner, M.D.

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

  • NPI 1619924941
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1 Joslin Pl, The Joslin Clinic
Boston, MA 022155306
(617) 732-2476

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
September 6, 2007
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Massachusetts #150670

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619924941. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
924
Distinct HCPCS
9
Medicare allowed
$81,574
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 371 250 $104
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 157 108 $37
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 104 68 $84
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 77 68 $53
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 68 68 $137
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 63 62 $88
99214 Established patient office or other outpatient visit, 30-39 minutes 38 31 $104
99443 Telephone medical discussion with physician, 21-30 minutes 26 23 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 20 20 $153

In context: peer comparison

Among 97 peers in this city , average services per provider: 116. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$645
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ROCHE DIABETES CARE, INC. 1 $622.00
Abbott Laboratories 1 $23.15

By nature of payment

Consulting Fee
$622
Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,342
Patients
710
Total drug cost
$1,433,285
Drug Type Claims Patients Total cost
Metformin Hcl Generic 258 85 $3,968
Metformin Hcl Er (Metformin Hcl) Brand 243 67 $6,431
Trulicity (Dulaglutide) Brand 225 57 $412,859
Novolog Flexpen (Insulin Aspart) Brand 205 66 $265,002
Levothyroxine Sodium Generic 183 45 $3,461
Ozempic (Semaglutide) Brand 175 55 $340,457
Atorvastatin Calcium Generic 168 54 $3,775
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 153 53 $143,587
Lisinopril Generic 140 41 $1,816
Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) Brand 123 56 $18,416

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lyle Mitzner's medical specialty?
Dr. Lyle Mitzner practices Endocrinology, Diabetes & Metabolism Physician in Boston, MA.
Where does Dr. Lyle Mitzner practice?
Dr. Lyle Mitzner practices at 1 Joslin Pl, Boston, MA 022155306. Office phone: 6177322476.
What is Dr. Lyle Mitzner's NPI?
Dr. Lyle Mitzner's National Provider Identifier (NPI) is 1619924941, issued by NPPES.
Does Dr. Lyle Mitzner accept Medicare assignment?
Yes. Dr. Lyle Mitzner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lyle Mitzner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.