Doctor profile · Federal record

Dr. Atefeh Kalantary, MD

Internal Medicine Physician (CMS: Hospitalist) · Internal Medicine Physician · Los Angeles, CA

  • NPI 1558854737
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 10 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
757 Westwood Plz Ste 7501
Los Angeles, CA 900958358
(310) 267-9643
Additional location
1675 Leahy St Ste 201A
Muskegon, MI 494425542
(231) 672-7800
fax (231) 672-7801
Additional location
G3230 Beecher RD Ste 2
Flint, MI 48532
(810) 342-5800
fax (810) 342-5810
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
December 6, 2023
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A173921 · Michigan #4351040036

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558854737. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,144
Distinct HCPCS
5
Medicare allowed
$138,013
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 572 204 $123
99239 Hospital discharge day management, more than 30 minutes 238 225 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 204 95 $82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 111 105 $178
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 19 19 $135

In context: peer comparison

Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 7.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
298
Patients
235
Total drug cost
$17,416
Drug Type Claims Patients Total cost
Sodium Chloride (0.9 % Sodium Chloride) Brand 37 0 $1,399
Pantoprazole Sodium Generic 31 28 $268
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 26 24 $146
Atorvastatin Calcium Generic 25 23 $230
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 23 22 $204
Eliquis (Apixaban) Brand 21 21 $13,068
Prednisone Generic 21 20 $86
Losartan Potassium Generic 17 15 $177
Naloxone Hcl Generic 16 16 $1,268
Carvedilol Generic 15 13 $117

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Atefeh Kalantary's medical specialty?
Dr. Atefeh Kalantary practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Atefeh Kalantary practice?
Dr. Atefeh Kalantary practices at 757 Westwood Plz Ste 7501, Los Angeles, CA 900958358. Office phone: 3102679643.
What is Dr. Atefeh Kalantary's NPI?
Dr. Atefeh Kalantary's National Provider Identifier (NPI) is 1558854737, issued by NPPES.
Does Dr. Atefeh Kalantary accept Medicare assignment?
Yes. Dr. Atefeh Kalantary accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Atefeh Kalantary commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.