Doctor profile · Federal record

Dr. William Harmon

Addiction Psychiatry Physician · Santa Cruz, CA

  • NPI 1194883314
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3120 Mission Dr
Santa Cruz, CA 950651824
(831) 462-0164

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
2084P0802X — NUCC code
State license (1)
California #A23325

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194883314. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
766
Distinct HCPCS
2
Medicare allowed
$42,746
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 385 37 $58
90836 Psychotherapy with evaluation and management visit, 45 minutes 381 37 $53

In context: peer comparison

Among 1 peers in Santa Cruz Addiction Psychiatry Physician, average services per provider: 383. This provider delivers 2.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
407
Patients
23
Total drug cost
$14,119
Drug Type Claims Patients Total cost
Lorazepam Generic 78 0 $707
Fluoxetine Hcl Generic 44 11 $969
Alprazolam Generic 37 12 $190
Aripiprazole Generic 24 0 $8,377
Bupropion Hcl SR (Bupropion Hcl) Brand 24 0 $245
Escitalopram Oxalate Generic 23 0 $273
Lamotrigine Generic 23 0 $339
Gabapentin Generic 22 0 $477
Propranolol Hcl Generic 22 0 $962
Sertraline Hcl Generic 21 0 $136

Frequently asked questions

Auto-generated from federal data
What is Dr. William Harmon's medical specialty?
Dr. William Harmon practices Addiction Psychiatry Physician in Santa Cruz, CA.
Where does Dr. William Harmon practice?
Dr. William Harmon practices at 3120 Mission Dr, Santa Cruz, CA 950651824. Office phone: 8314620164.
What is Dr. William Harmon's NPI?
Dr. William Harmon's National Provider Identifier (NPI) is 1194883314, issued by NPPES.
What procedures does Dr. William Harmon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Psychotherapy with evaluation and management visit (HCPCS 90836). Source: CMS Medicare Physician & Other Practitioners file.