Doctor profile · Federal record

Dr. Oscar Adler, M.D., PHD

Nephrology Physician (CMS: Internal Medicine) · Leesburg, VA

  • NPI 1700874138
  • Accepts Medicare
  • MIPS 92.6 / 100 · 2023
  • 43 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
19490 Sandridge Way, Suite 120
Leesburg, VA 201763469
(703) 723-5555
fax (703) 562-6996
Mailing address
224D Cornwall St Nw Ste 403
Leesburg, VA 201762704

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
October 6, 2023
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Virginia #0101234619
Medicaid (2)
VA #1700874138 · VA #30015815110001

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700874138. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,665
Distinct HCPCS
6
Medicare allowed
$241,504
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 716 358 $124
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 466 198 $78
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 216 27 $341
99204 New patient office or other outpatient visit, 45-59 minutes 135 135 $163
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 109 103 $127
90961 Dialysis services, 2-3 physician visits per month (20 years or older) 23 13 $287

In context: peer comparison

Among 1 peers in Leesburg Nephrology Physician, average services per provider: 277. This provider delivers 6.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$215
Transactions
4
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Recor Medical INC 1 $141.99
Calliditas Therapeutics US INC. 1 $29.77
Akebia Therapeutics INC 1 $24.61
Mallinckrodt Hospital Products INC. 1 $19.10

By nature of payment

Food and Beverage
$191
Education
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,092
Patients
362
Total drug cost
$74,634
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 200 70 $1,831
Calcitriol Generic 151 44 $4,541
Nifedipine ER (Nifedipine) Brand 120 35 $6,460
Carvedilol Generic 103 34 $1,494
Hydralazine Hcl Generic 93 34 $1,434
Metoprolol Succinate Generic 60 24 $1,371
Valsartan Generic 57 24 $2,513
Furosemide Generic 52 25 $290
Tamsulosin Hcl Generic 49 15 $2,037
Losartan Potassium Generic 44 17 $585

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Oscar Adler's medical specialty?
Dr. Oscar Adler practices Nephrology Physician in Leesburg, VA.
Where does Dr. Oscar Adler practice?
Dr. Oscar Adler practices at 19490 Sandridge Way, Suite 120, Leesburg, VA 201763469. Office phone: 7037235555.
What is Dr. Oscar Adler's NPI?
Dr. Oscar Adler's National Provider Identifier (NPI) is 1700874138, issued by NPPES.
Does Dr. Oscar Adler accept Medicare assignment?
Yes. Dr. Oscar Adler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oscar Adler commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.