Doctor profile · Federal record
Dr. Lawrence Senffner, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Arcata, CA
- NPI 1730120676
- Accepts Medicare
- 59 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3798 Janes RD, Suite 20
Arcata, CA 955214753
(707) 822-2432
fax (707) 822-6301
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- December 20, 2011
- Year of graduation
- 1967 — 59 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G17651
- Medicaid
- CA #00G176510
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1730120676. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,035
Distinct HCPCS
4
Medicare allowed
$38,066
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 650 | 515 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 342 | 90 | $88 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 25 | 24 | $15 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 18 | 18 | $131 |
In context: peer comparison
Among 1 peers in Arcata Internal Medicine Physician, average services per provider: 258. This provider delivers 4.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
712
Patients
167
Total drug cost
$15,145
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 106 | 31 | $1,062 |
| Celecoxib | Generic | 72 | 19 | $2,407 |
| Spironolactone-Hctz (Spironolact/Hydrochlorothiazid) | Brand | 71 | 18 | $3,552 |
| Montelukast Sodium | Generic | 60 | 17 | $1,217 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 55 | 14 | $1,303 |
| Amlodipine Besylate | Generic | 52 | 16 | $393 |
| Atenolol | Generic | 44 | 14 | $312 |
| Trazodone Hcl | Generic | 40 | 15 | $1,029 |
| Metoprolol Tartrate | Generic | 39 | 12 | $418 |
| Levothyroxine Sodium | Generic | 34 | 11 | $537 |
Hospital affiliations
Frequently asked questions
What is Dr. Lawrence Senffner's medical specialty?
Dr. Lawrence Senffner practices Internal Medicine Physician in Arcata, CA.
Where does Dr. Lawrence Senffner practice?
Dr. Lawrence Senffner practices at 3798 Janes RD, Arcata, CA 955214753. Office phone: 7078222432.
What is Dr. Lawrence Senffner's NPI?
Dr. Lawrence Senffner's National Provider Identifier (NPI) is 1730120676, issued by NPPES.
Does Dr. Lawrence Senffner accept Medicare assignment?
Yes. Dr. Lawrence Senffner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lawrence Senffner commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99213); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.