Active NPI 1295774461 Individual Practitioner Male Practitioner

Dr. Thomas B Williamson , MD

Internal Medicine • Huron, OH

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Williamson, MD is a certified Internal Medicine practicing in Huron, OH. With approximately 49 years of clinical experience since graduating from University Of Rochester School Of Medicine And Dentistry in 1977, Dr. Williamson delivers high-quality medical care to the local community at 300 WILLIAMS ST.

Dr. Williamson is affiliated with North Coast Professional Company, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, blood test, clotting time, anticoagulant management of patient taking warfarin. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 Williams St

Huron, OH 448391648

Telephone 4194335222

Fax 4194338214

Associated Practice Facility / Clinic

🏢 North Coast Professional Company, Llc Facility NPI 1407393242

Medicare Profile & Education

Medical School

University Of Rochester School Of Medicine And Dentistry

Graduation Year

1977

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Huron, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

49 Yrs +22.0 yrs vs City Avg

City Avg: 27.0 Yrs

State Avg: 26.9 Yrs

Regional Practice Density

3 Specialists

Practicing in Huron, OH (5516 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

50.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williamson (49 Years) 49 Yrs

Huron Specialty Average (27.0 Years) 27.0 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
99213 Established patient office or other outpatient visit, typically 15 minutes	320	191	$148.16	$65.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	307	172	$207.85	$83.49
85610 Blood test, clotting time	293	21	$21.89	$4.20
93793 Anticoagulant management of patient taking warfarin	284	21	$18.89	$10.91
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	176	176	$186.70	$46.94
83036 Hemoglobin A1C level	147	59	$32.90	$9.52
G0008 Administration of influenza virus vaccine	41	41	$26.00	$25.48
90662 Influenza vaccine split virus, preservative free	40	40	$109.25	$81.73
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	17	$93.00	$51.05
81003 Automated urinalysis test	18	18	$15.89	$2.20
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	16	15	$75.00	$51.39
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	11	11	$241.55	$149.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	539	402	$46.09	$7.83
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	503	214	$200.00	$82.89
85610 Blood test, clotting time	371	25	$21.00	$4.20
93793 Anticoagulant management of patient taking warfarin	358	25	$18.00	$10.95
99213 Established patient office or other outpatient visit, typically 15 minutes	219	138	$140.00	$67.62
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	160	160	$169.00	$44.26
83036 Hemoglobin A1C level	150	64	$32.00	$9.52
G0008 Administration of influenza virus vaccine	55	55	$25.00	$24.50
90662 Influenza vaccine split virus, preservative free	53	53	$80.00	$71.87
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	31	23	$78.00	$49.36
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	22	22	$444.00	$282.23
G0009 Administration of pneumococcal vaccine	22	22	$25.00	$24.50
81003 Automated urinalysis test	22	16	$15.00	$2.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	12	$90.00	$49.97
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza	13	13	$105.00	$32.02
93000 Routine ekg using at least 12 leads including interpretation and report	12	11	$29.00	$13.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	577	413	$46.08	$8.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	577	237	$200.00	$84.95
85610 Blood test, clotting time	385	28	$21.00	$4.24
93793 Anticoagulant management of patient taking warfarin	373	28	$18.00	$10.92
99213 Established patient office or other outpatient visit, typically 15 minutes	193	143	$140.00	$69.94
83036 Hemoglobin A1C level	166	76	$32.00	$9.59
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	148	148	$169.00	$48.06
G0008 Administration of influenza virus vaccine	47	47	$25.00	$24.53
90662 Influenza vaccine split virus, preservative free	46	46	$80.00	$68.33
81003 Automated urinalysis test	34	18	$15.00	$2.23
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	27	24	$78.00	$50.71
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	15	14	$80.00	$35.24
93000 Routine ekg using at least 12 leads including interpretation and report	14	13	$29.00	$13.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	923	613	$44.95	$8.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	648	264	$200.00	$110.23
85610 Blood test, clotting time	398	29	$21.00	$4.29
93793 Anticoagulant management of patient taking warfarin	294	29	$18.00	$11.12
99213 Established patient office or other outpatient visit, typically 15 minutes	269	173	$140.00	$84.39
83036 Hemoglobin A1C level	174	79	$32.00	$9.71
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	146	146	$169.00	$101.76
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	87	28	$40.00	$25.95
90662 Influenza vaccine split virus, preservative free	86	86	$80.00	$65.26
G0008 Administration of influenza virus vaccine	83	83	$25.00	$16.19
99442 Telephone medical discussion with physician, 11-20 minutes	58	40	$105.00	$89.38
81003 Automated urinalysis test	54	37	$15.00	$2.25
82570 Creatinine level to test for kidney function or muscle injury	37	35	$28.00	$5.18
82044 Urine microalbumin (protein) analysis	37	35	$29.00	$6.23
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	29	27	$90.00	$54.09
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	16	14	$78.00	$51.09
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	13	13	$244.00	$163.67
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$280.00	$168.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	786	541	$44.00	$8.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	677	274	$160.94	$105.53
85610 Blood test, clotting time	360	31	$21.00	$4.26
93793 Anticoagulant management of patient taking warfarin	350	32	$18.00	$11.46
99213 Established patient office or other outpatient visit, typically 15 minutes	242	161	$111.22	$72.38
99442 Telephone medical discussion with physician, 11-20 minutes	216	94	$103.00	$70.68
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	160	160	$169.00	$111.94
83036 Hemoglobin A1C level	137	69	$32.00	$9.67
G0008 Administration of influenza virus vaccine	57	57	$25.00	$16.05
90662 Influenza vaccine split virus, preservative free	57	57	$80.00	$60.66
81003 Automated urinalysis test	51	36	$15.00	$2.23
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	33	29	$78.00	$51.48
G0009 Administration of pneumococcal vaccine	25	25	$25.00	$16.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	23	20	$214.96	$142.45
99443 Telephone medical discussion with physician, 21-30 minutes	18	17	$150.94	$101.92
99441 Telephone medical discussion with physician, 5-10 minutes	16	16	$60.44	$42.20
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	16	16	$176.00	$118.42
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$29.00	$16.43
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	13	13	$251.00	$166.00
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	12	12	$244.00	$161.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,099	374	$157.00	$103.91
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,042	696	$43.08	$8.33
85610 Blood test, clotting time	374	28	$21.00	$4.28
99213 Established patient office or other outpatient visit, typically 15 minutes	369	203	$105.00	$70.64
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	204	204	$169.00	$110.94
83036 Hemoglobin A1C level	177	84	$32.00	$10.55
93793 Anticoagulant management of patient taking warfarin	163	27	$18.00	$11.62
81003 Automated urinalysis test	86	58	$15.00	$2.44
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	67	12	$42.00	$15.89
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	63	23	$29.00	$21.44
G0008 Administration of influenza virus vaccine	61	60	$25.00	$15.75
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	46	39	$212.00	$140.21
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	38	38	$39.00	$17.48
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	37	31	$78.00	$50.94
G0009 Administration of pneumococcal vaccine	29	29	$25.00	$15.75
90662 Influenza vaccine split virus, preservative free	23	23	$80.00	$54.55
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	22	22	$251.00	$164.38
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	20	20	$176.00	$110.03
93000 Routine ekg using at least 12 leads including interpretation and report	17	16	$29.00	$16.17
69210 Removal of impacted ear wax	14	13	$96.00	$45.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,111	739	$42.00	$8.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,036	386	$157.00	$103.57
85610 Blood test, clotting time	413	28	$21.00	$4.75
99213 Established patient office or other outpatient visit, typically 15 minutes	383	237	$105.00	$70.14
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	221	221	$169.00	$111.76
83036 Hemoglobin A1C level	170	77	$32.00	$11.75
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	122	27	$29.00	$20.41
G0008 Administration of influenza virus vaccine	92	89	$25.00	$19.30
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	85	83	$39.00	$17.48
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	80	15	$42.00	$19.45
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	69	55	$212.00	$139.91
81003 Automated urinalysis test	54	41	$15.00	$2.71
G0009 Administration of pneumococcal vaccine	47	47	$25.00	$19.30
90670 Pneumococcal vaccine for injection into muscle	40	40	$373.00	$198.87
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	35	31	$78.00	$51.50
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	23	23	$251.00	$164.90
90471 Administration of 1 vaccine	22	21	$42.00	$19.45
90662 Influenza vaccine split virus, preservative free	17	17	$80.00	$52.30
69210 Removal of impacted ear wax	15	13	$96.00	$46.89
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	14	11	$60.00	$39.74
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	11	11	$176.00	$105.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,505	954	$41.00	$8.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,098	418	$157.00	$103.11
99213 Established patient office or other outpatient visit, typically 15 minutes	430	260	$105.00	$70.02
85610 Blood test, clotting time	422	29	$21.00	$5.28
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	264	264	$251.00	$163.71
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	209	29	$29.00	$19.07
83036 Hemoglobin A1C level	192	84	$32.00	$13.05
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	132	132	$169.00	$110.51
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	123	119	$39.00	$17.48
G0008 Administration of influenza virus vaccine	123	119	$25.00	$23.76
G0009 Administration of pneumococcal vaccine	90	90	$25.00	$23.76
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	79	65	$212.00	$138.86
81003 Automated urinalysis test	73	50	$15.00	$2.98
90670 Pneumococcal vaccine for injection into muscle	50	50	$373.00	$185.61
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	45	45	$176.00	$94.74
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	27	27	$244.00	$159.18
90471 Administration of 1 vaccine	19	18	$42.00	$23.88
93000 Routine ekg using at least 12 leads including interpretation and report	14	13	$29.00	$16.11
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report	14	14	$25.00	$16.24

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License OH 35-04-3844-W

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

0472500 (OH)

Hospital & Practice Group Affiliations

North Coast Professional Company, Llc

300 Williams St, Huron, OH 448391648

Phone: 4194335222

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Carolyn Stierhoff , MD

Internal Medicine

NPI 1144807009

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 September 11, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location September 11, 2012

Registered at 300 WILLIAMS ST, HURON, OH 448391648 (Tel: 4194335222)

📍

Updated Business Mailing Address September 11, 2012

Registered at 1031 PIERCE STREET, SUITE D, SANDUSKY, OH 44870 (Tel: 4195575541)

👤

Provider Name / Credentials Updated September 11, 2012

Recorded as THOMAS WILLIAMSON, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 11, 2012

Internal Medicine (License #35-04-3844-W in OH)

🟢

Initial NPI Registration & Enumeration June 05, 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: 1295774461

Entity Type:

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

Enumeration Date: June 05, 2006

Last Update: September 11, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1031 Pierce Street, Suite D

Sandusky, OH 44870

Phone: 4195575541

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.