Active NPI 1730120676 Individual Practitioner Male Practitioner

Dr. Lawrence Anthony Senffner , MD

Internal Medicine • Arcata, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Lawrence Senffner, MD is a certified Internal Medicine practicing in Arcata, CA. With approximately 59 years of clinical experience since graduating from University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb) in 1967, Dr. Senffner delivers high-quality medical care to the local community at 3798 JANES RD.

Dr. Senffner is affiliated with North Pacific Cardiology Medical and accepts Medicare assignment.

Frequently performed procedures and clinical services include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, established patient outpatient office visit, routine ekg using at least 12 leads including interpretation and report. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3798 Janes Rd
Suite 20

Arcata, CA 955214753

Telephone 7078222432

Fax 7078226301

Associated Practice Facility / Clinic

🏢 Stephen J. Clark, M.d., Inc Facility NPI 1801938881

Medicare Profile & Education

Medical School

University Of Illinois College Of Med (Chi/peor/rock/chm-Urb)

Graduation Year

1967

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Arcata, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

59 Yrs +13.0 yrs vs City Avg

City Avg: 46.0 Yrs

State Avg: 26.6 Yrs

Regional Practice Density

4 Specialists

Practicing in Arcata, CA (18502 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Senffner (59 Years) 59 Yrs

Arcata Specialty Average (46.0 Years) 46.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	452	362	$35.00	$7.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	650	515	$35.00	$8.14
99213 Established patient office or other outpatient visit, typically 15 minutes	342	90	$88.80	$87.86
93000 Routine ekg using at least 12 leads including interpretation and report	25	24	$32.00	$14.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$142.33	$130.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	892	680	$34.98	$8.38
99213 Established patient office or other outpatient visit, typically 15 minutes	641	100	$88.00	$87.19
93000 Routine ekg using at least 12 leads including interpretation and report	50	42	$32.00	$14.77
20610 Aspiration and/or injection of fluid from large joint	49	33	$92.14	$64.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	43	$142.00	$132.30
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	22	22	$45.00	$14.76
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	11	11	$50.09	$19.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	738	114	$80.63	$80.63
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	697	520	$25.00	$8.62
93000 Routine ekg using at least 12 leads including interpretation and report	61	52	$32.00	$15.43
20610 Aspiration and/or injection of fluid from large joint	49	28	$91.43	$63.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	42	$124.29	$124.29
G0008 Administration of influenza virus vaccine	29	29	$22.07	$17.82
90756 Vaccine for influenza for injection into muscle	29	29	$27.97	$27.66
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	18	18	$45.00	$15.21
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	13	13	$52.92	$19.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	763	568	$24.97	$8.79
99213 Established patient office or other outpatient visit, typically 15 minutes	746	120	$78.90	$78.17
20610 Aspiration and/or injection of fluid from large joint	70	27	$91.00	$61.05
G0008 Administration of influenza virus vaccine	65	65	$25.23	$17.68
90756 Vaccine for influenza for injection into muscle	65	65	$25.77	$25.75
93000 Routine ekg using at least 12 leads including interpretation and report	61	49	$32.00	$17.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	45	45	$115.56	$113.41
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	19	17	$45.00	$15.46
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	15	13	$53.20	$27.76
69210 Removal of impacted ear wax	14	11	$55.00	$49.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	896	133	$77.95	$74.53
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	684	518	$21.61	$8.65
20610 Aspiration and/or injection of fluid from large joint	89	42	$89.89	$55.40
93000 Routine ekg using at least 12 leads including interpretation and report	70	62	$32.00	$17.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	59	$114.41	$108.80
90756 Vaccine for influenza for injection into muscle	57	57	$23.91	$23.43
G0008 Administration of influenza virus vaccine	53	53	$27.09	$17.33
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	31	30	$45.00	$15.27
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	12	12	$43.75	$27.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	987	133	$76.00	$71.24
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	640	508	$21.23	$9.14
Q2037 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin)	75	75	$16.99	$16.65
G0008 Administration of influenza virus vaccine	75	75	$28.00	$21.47
93000 Routine ekg using at least 12 leads including interpretation and report	70	62	$32.00	$16.61
20610 Aspiration and/or injection of fluid from large joint	62	31	$95.00	$58.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	56	56	$110.00	$105.18
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	29	29	$45.00	$16.10
69210 Removal of impacted ear wax	16	14	$55.00	$47.71
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	13	13	$42.54	$29.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,031	136	$75.96	$70.85
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	623	447	$20.81	$8.15
Q2037 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin)	81	80	$16.00	$15.68
G0008 Administration of influenza virus vaccine	81	80	$28.00	$26.83
93000 Routine ekg using at least 12 leads including interpretation and report	76	66	$32.00	$16.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	63	62	$110.00	$104.23
20610 Aspiration and/or injection of fluid from large joint	55	32	$94.18	$57.63
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	11	11	$45.00	$14.45

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA G17651

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00G176510 (CA)

Hospital & Practice Group Affiliations

North Pacific Cardiology Medical

3800 Janes Rd, Arcata, CA 955214742

Phone: 70782272203358

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners

Dr. Gary Garcia , MD

Internal Medicine

NPI 1275513517

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active December 20, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location December 20, 2011

Registered at 3798 JANES RD, SUITE 20, ARCATA, CA 955214753 (Tel: 7078222432)

📍

Updated Business Mailing Address December 20, 2011

Registered at 3798 JANES RD, SUITE 20, ARCATA, CA 955214753 (Tel: 7078222432)

👤

Provider Name / Credentials Updated December 20, 2011

Recorded as LAWRENCE SENFFNER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 20, 2011

Internal Medicine (License #G17651 in CA)

🟢

Initial NPI Registration & Enumeration June 10, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1730120676

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 10, 2006

Last Update: December 20, 2011

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

3798 Janes Rd, Suite 20

Arcata, CA 955214753

Phone: 7078222432

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.