Doctor profile · Federal record

Dr. WILLIAM GASPAR, MD

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · Internal Medicine Physician · CHANDLER, AZ

  • NPI 1497739015
  • Accepts Medicare
  • 35 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1860 S ALMA SCHOOL RD, STE 1
CHANDLER, AZ 852867078
(480) 361-1955
Additional location
4311 E Lohman Ave
Las Cruces, NM 880118255
(575) 556-7600
Mailing address
1860 S ALMA SCHOOL RD STE 1
CHANDLER, AZ 852867078

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
March 2, 2026
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
New Mexico #96251 · Arizona #68691
Medicaid
NM #000L5164

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1497739015. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
694
Distinct HCPCS
6
Medicare allowed
$61,330
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 443 164 $77
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 93 39 $115
99238 Hospital discharge day management, 30 minutes or less 67 67 $78
99239 Hospital discharge day management, more than 30 minutes 59 59 $111
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 21 21 $168
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $126

In context: peer comparison

Among 36 peers in this city , average services per provider: 186. This provider delivers 3.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
40
Patients
39
Total drug cost
$397
Drug Type Claims Patients Total cost
Cefuroxime (Cefuroxime Axetil) Brand 27 26 $313
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 13 13 $84