Doctor profile · Federal record

Dr. William Mundy, MD

Hospitalist Physician (CMS: Hospitalist) · Family Medicine Physician · Berkeley, CA

  • NPI 1336341825
  • Accepts Medicare
  • MIPS 84.1 / 100 · 2023
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2450 Ashby Ave Rm 5505
Berkeley, CA 947052067
(510) 204-4444
fax (510) 649-8287
Mailing address
3687 Mt Diablo Blvd Ste 200
Lafayette, CA 945493746

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
July 21, 2022
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #A105911

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336341825. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
419
Distinct HCPCS
5
Medicare allowed
$52,710
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 180 111 $129
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 94 52 $87
99239 Hospital discharge day management, more than 30 minutes 89 88 $126
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 44 44 $187
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $146

In context: peer comparison

Among 16 peers in this city , average services per provider: 93. This provider delivers 4.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
329
Patients
202
Total drug cost
$20,680
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 45 27 $480
Amlodipine Besylate Generic 37 24 $209
Levofloxacin Generic 33 32 $189
Atorvastatin Calcium Generic 31 19 $215
Eliquis (Apixaban) Brand 29 15 $17,073
Furosemide Generic 28 18 $214
Metoprolol Succinate Generic 18 11 $108
Losartan Potassium Generic 16 0 $145
Prednisone Generic 16 15 $116
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 15 15 $185

Frequently asked questions

Auto-generated from federal data
What is Dr. William Mundy's medical specialty?
Dr. William Mundy practices Hospitalist Physician in Berkeley, CA.
Where does Dr. William Mundy practice?
Dr. William Mundy practices at 2450 Ashby Ave Rm 5505, Berkeley, CA 947052067. Office phone: 5102044444.
What is Dr. William Mundy's NPI?
Dr. William Mundy's National Provider Identifier (NPI) is 1336341825, issued by NPPES.
Does Dr. William Mundy accept Medicare assignment?
Yes. Dr. William Mundy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Mundy commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.