Doctor profile · Federal record
Dr. David Horwitz, PAC
Medical Physician Assistant (CMS: Physician Assistant) · Arcata, CA
- NPI 1386739845
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1150 Foster Ave
Arcata, CA 955215986
(707) 826-8610
fax (707) 826-8623 - Mailing address
-
670 Ninth Street, Suite 203
Arcata, CA 95521
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- October 1, 2024
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 363AM0700X — NUCC code
- State license (1)
- California #PA10646
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386739845. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
150
Distinct HCPCS
4
Medicare allowed
$1,201
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
83036 |
Hemoglobin a1c level | 74 | 29 | $10 | |
81015 |
Urinalysis using microscope | 35 | 30 | $3 | |
80305 |
Testing for presence of drug, read by direct observation | 21 | 20 | $12 | |
93005 |
Routine electrocardiogram (ecg) using at least 12 leads with tracing | 20 | 17 | $7 |
In context: peer comparison
Among 1 peers in Arcata Medical Physician Assistant, average services per provider: 37. This provider delivers 4.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,387
Patients
276
Total drug cost
$30,822
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 220 | 44 | $4,464 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 170 | 23 | $5,432 |
| Levothyroxine Sodium | Generic | 127 | 26 | $2,347 |
| Gabapentin | Generic | 124 | 25 | $4,085 |
| Omeprazole | Generic | 102 | 18 | $1,999 |
| Amlodipine Besylate | Generic | 98 | 30 | $1,826 |
| Lisinopril | Generic | 80 | 14 | $1,288 |
| Hydrochlorothiazide | Generic | 71 | 22 | $380 |
| Trazodone Hcl | Generic | 69 | 11 | $1,885 |
| Tamsulosin Hcl | Generic | 57 | 18 | $2,605 |
Hospital affiliations
Frequently asked questions
What is Dr. David Horwitz's medical specialty?
Dr. David Horwitz practices Medical Physician Assistant in Arcata, CA.
Where does Dr. David Horwitz practice?
Dr. David Horwitz practices at 1150 Foster Ave, Arcata, CA 955215986. Office phone: 7078268610.
What is Dr. David Horwitz's NPI?
Dr. David Horwitz's National Provider Identifier (NPI) is 1386739845, issued by NPPES.
Does Dr. David Horwitz accept Medicare assignment?
Yes. Dr. David Horwitz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Horwitz commonly perform?
Top Medicare-reported procedures in 2023: Hemoglobin a1c level (HCPCS 83036); Urinalysis using microscope (HCPCS 81015); Testing for presence of drug, read by direct observation (HCPCS 80305). Source: CMS Medicare Physician & Other Practitioners file.