Doctor profile · Federal record

Dr. Raymond Bass, M.D.

Nephrology Physician (CMS: Nephrology) · Wheaton, MD

  • NPI 1689672164
  • Accepts Medicare
  • 53 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3941 Ferrara Dr
Wheaton, MD 209064709
(301) 942-5355

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
November 13, 2009
Year of graduation
1973 — 53 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Maryland #D0021340
Medicaid
MD #314731200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689672164. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,301
Distinct HCPCS
10
Medicare allowed
$369,999
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 808 415 $104
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 527 123 $86
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 339 58 $388
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 133 106 $141
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 100 56 $54
90961 Dialysis services, 2-3 physician visits per month (20 years or older) 96 42 $329
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 87 43 $129
90966 Home dialysis services per month (20 years or older) 86 15 $330
99204 New patient office or other outpatient visit, 45-59 minutes 70 70 $186
81000 Manual urinalysis test with examination using microscope, non-automated 55 55 $4

In context: peer comparison

Among 1 peers in Wheaton Nephrology Physician, average services per provider: 230. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,268
Transactions
56
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Akebia Therapeutics INC 9 $177.69
Novartis Pharmaceuticals Corporation 8 $156.75
Bayer Healthcare Pharmaceuticals INC. 6 $143.77
Amgen INC. 5 $119.75
Vifor Pharma, INC. 4 $104.20
AstraZeneca Pharmaceuticals Lp 4 $99.61
Otsuka America Pharmaceutical, INC. 4 $84.17
Boehringer Ingelheim Pharmaceuticals, INC. 4 $79.23
Aurinia Pharma U.S., INC. 3 $78.36
Fresenius USA Marketing, INC. 3 $61.23
Ardelyx, INC. 2 $53.55
Alexion Pharmaceuticals, INC. 1 $27.74
Travere Therapeutics, INC. 1 $23.55
Opko Pharmaceuticals, LLC 1 $22.62
Calliditas Therapeutics US INC. 1 $18.01

By nature of payment

Food and Beverage
$1,168
Education
$99

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,564
Patients
491
Total drug cost
$168,953
Drug Type Claims Patients Total cost
Losartan Potassium Generic 221 75 $3,645
Furosemide Generic 211 63 $2,175
Amlodipine Besylate Generic 196 62 $2,505
Allopurinol Generic 175 50 $2,791
Spironolactone Generic 155 53 $2,186
Chlorthalidone Generic 111 33 $3,517
Farxiga (Dapagliflozin Propanediol) Brand 97 34 $128,819
Lisinopril Generic 71 25 $885
Hydralazine Hcl Generic 58 17 $1,663
Metoprolol Succinate Generic 58 22 $1,287

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Raymond Bass's medical specialty?
Dr. Raymond Bass practices Nephrology Physician in Wheaton, MD.
Where does Dr. Raymond Bass practice?
Dr. Raymond Bass practices at 3941 Ferrara Dr, Wheaton, MD 209064709. Office phone: 3019425355.
What is Dr. Raymond Bass's NPI?
Dr. Raymond Bass's National Provider Identifier (NPI) is 1689672164, issued by NPPES.
Does Dr. Raymond Bass accept Medicare assignment?
Yes. Dr. Raymond Bass accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Raymond Bass 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.