Doctor profile · Federal record

Dr. Natalie Klar, M.D.

Medical Oncology Physician (CMS: Medical Oncology) · Student in an Organized Health Care Education/Training Program · Hematology & Oncology Physician · New York, NY

  • NPI 1013371392
  • Accepts Medicare
  • MIPS 84.5 / 100 · 2023
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
530 1St Ave
New York, NY 100166402
(212) 263-4689
fax (646) 754-7546
Additional location
200 Lothrop St, Suite N-715
Pittsburgh, PA 152132536
(412) 692-4700
Mailing address
200 Lothrop St, Suite N-715
Pittsburgh, PA 152132536

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
November 4, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
New York #298727

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013371392. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
127
Distinct HCPCS
3
Medicare allowed
$19,882
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 57 31 $162
99214 Established patient office or other outpatient visit, 30-39 minutes 39 24 $110
99205 New patient office or other outpatient visit, 60-74 minutes 31 30 $205

In context: peer comparison

Among 122 peers in New York Medical Oncology Physician, average services per provider: 215. This provider delivers 0.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$143
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Daiichi Sankyo INC. 1 $143.00

By nature of payment

Food and Beverage
$143

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
137
Patients
47
Total drug cost
$5,985
Drug Type Claims Patients Total cost
Letrozole Generic 83 34 $4,125
Anastrozole Generic 42 13 $1,322
Tamoxifen Citrate Generic 12 0 $538

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Natalie Klar's medical specialty?
Dr. Natalie Klar practices Medical Oncology Physician in New York, NY.
Where does Dr. Natalie Klar practice?
Dr. Natalie Klar practices at 530 1St Ave, New York, NY 100166402. Office phone: 2122634689.
What is Dr. Natalie Klar's NPI?
Dr. Natalie Klar's National Provider Identifier (NPI) is 1013371392, issued by NPPES.
Does Dr. Natalie Klar accept Medicare assignment?
Yes. Dr. Natalie Klar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Natalie Klar 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 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.