Dr. Kenneth Son , MD
Internal Medicine โข Marion, OH
1000 Mckinley Park Dr
Marion, OH 433026399
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on June 16, 2005; this date does not establish years in practice.
-
Published CMS data list 760 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 305 service units.
- 99239 โ Hospital discharge day management: 205 service units.
- 99232 โ Subsequent hospital care with moderate levelof medical decision making: 164 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 494 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Prednisone โ 63 prescription fills, including refills.
- Furosemide โ 44 prescription fills, including refills.
- Cefuroxime (Cefuroxime Axetil) โ 39 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 24 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Marion, OH (2024, 18 clinicians with data). Median for this group: 731. Middle half: 463 to 2,378.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,138 clinicians with data). Median for this group: 576. Middle half: 263 to 1,039.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 1,828 in 2020 to 760 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1000 Mckinley Park Dr
Marion, OH 433026399
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in East China, MI. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 3 distinct group names: Mvhe Inc; Ohiohealth Corporation; Southwest Medical Center. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2012
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
342 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $81,389 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $62,600 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
527 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$3,889 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2023
All general payments: $136.00 across 2 records.
By nature of payment
- Food and Beverage: $136.00 across 2 records.
Reporting-company totals
- Galderma Laboratories, L.P.: $136.00 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
Years since graduation
14 years (graduated 2012)
CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Son has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Son as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Marion and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Internal Medicine in Marion, OH (2024, 18 clinicians with data). Median for this group: 731. Middle half: 463 to 2,378.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,138 clinicians with data). Median for this group: 576. Middle half: 263 to 1,039.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Marion, OH (2024, 18 clinicians with data). Median for this group: $79,476. Middle half: $49,187 to $95,872.
A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Ohio (2024, 3,138 clinicians with data). Median for this group: $50,787. Middle half: $23,982 to $82,972.
Paid by Medicare
Close to the middle for clinicians listed under Internal Medicine in Marion, OH (2024, 18 clinicians with data). Median for this group: $58,693. Middle half: $38,365 to $70,105.
A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Ohio (2024, 3,138 clinicians with data). Median for this group: $37,964. Middle half: $17,499 to $63,501.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Marion, OH (2024, 17 clinicians with data). Median for this group: 6,321. Middle half: 494 to 12,105.
Close to the middle for clinicians listed under Internal Medicine in Ohio (2024, 3,384 clinicians with data). Median for this group: 836. Middle half: 118 to 5,398.
Part D drug cost
A lower Part D drug cost than 75% of clinicians listed under Internal Medicine in Marion, OH (2024, 17 clinicians with data). Median for this group: $418,675. Middle half: $3,889 to $757,058.
A lower Part D drug cost than 70% of clinicians listed under Internal Medicine in Ohio (2024, 3,384 clinicians with data). Median for this group: $69,804. Middle half: $3,586 to $436,236.
27 active clinicians are listed under Internal Medicine with a practice address in Marion, OH (5,315 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Marion
22.2% of these 27 clinicians have the CMS telehealth indicator.
63% of these 27 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services decreased 58% from 1,828 in 2020 to 760 in 2024.
- 2020: 1,828
- 2021: 1,952
- 2022: 859
- 2023: 614
- 2024: 760
-
Medicare-allowed amount
Medicare-allowed amount decreased 59% from $197,942 in 2020 to $81,389 in 2024.
- 2020: $197,942
- 2021: $201,147
- 2022: $91,817
- 2023: $68,369
- 2024: $81,389
-
Paid by Medicare
Paid by Medicare decreased 59% from $153,809 in 2020 to $62,600 in 2024.
- 2020: $153,809
- 2021: $159,796
- 2022: $71,391
- 2023: $51,880
- 2024: $62,600
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 79% from 2,361 in 2020 to 494 in 2024.
- 2020: 2,361
- 2021: 699
- 2022: 546
- 2023: 420
- 2024: 494
-
30-day fills
30-day fills decreased 78% from 2,434 in 2020 to 527 in 2024.
- 2020: 2,434
- 2021: 723
- 2022: 638
- 2023: 445
- 2024: 527
-
Part D drug cost
Part D drug cost decreased 96% from $106,339 in 2020 to $3,889 in 2024.
- 2020: $106,339
- 2021: $23,523
- 2022: $17,327
- 2023: $3,982
- 2024: $3,889
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $108.64 in 2020 to $136.00 in 2023.
- 2020: $108.64
- 2021: $25.48
- 2022: $14.37
- 2023: $136.00
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 โ December 31, 2023): fewer than 11 records totaling $136.00.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
โ | General | $125.00 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
โ | General | $11.00 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
|
305 | 171 | $557.05 | $110.41 |
|
99239
Hospital discharge day management, more than 30 minutes
|
205 | 196 | $532.43 | $106.87 |
|
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
164 | 110 | $308.60 | $74.02 |
|
99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
86 | 82 | $787.34 | $158.91 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 63 | 510 | $146.76 | 59 |
| Furosemide | Furosemide | 44 | 1,127 | $120.23 | 41 |
| Cefuroxime | Cefuroxime Axetil | 39 | 146 | $518.62 | 38 |
| Metoprolol Tartrate | Metoprolol Tartrate | 28 | 883 | $79.89 | 26 |
| Potassium Chloride | Potassium Chloride | 27 | 585 | $188.65 | 25 |
| Losartan Potassium | Losartan Potassium | 24 | 901 | $171.10 | 20 |
| Metoprolol Succinate | Metoprolol Succinate | 21 | 635 | $257.46 | โ |
| Pantoprazole Sodium | Pantoprazole Sodium | 20 | 600 | $147.08 | 19 |
| Azithromycin | Azithromycin | 18 | 57 | $57.08 | 18 |
| Ondansetron Odt | Ondansetron | 18 | 185 | $557.95 | 13 |
| Hydralazine Hcl | Hydralazine Hcl | 18 | 780 | $180.89 | 14 |
| Atorvastatin Calcium | Atorvastatin Calcium | 17 | 515 | $211.29 | โ |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 15 | 396 | $244.32 | 15 |
| Gabapentin | Gabapentin | 14 | 389 | $149.96 | โ |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 14 | 42 | $64.91 | 14 |
| Amlodipine Besylate | Amlodipine Besylate | 14 | 390 | $27.09 | 12 |
| Clopidogrel | Clopidogrel Bisulfate | 14 | 531 | $45.29 | โ |
| Methocarbamol | Methocarbamol | 13 | 225 | $98.26 | 13 |
| Bumetanide | Bumetanide | 13 | 420 | $222.51 | 13 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 13 | 95 | $82.31 | 12 |
| Cephalexin | Cephalexin | 12 | 89 | $65.22 | 12 |
| Oxycodone Hcl | Oxycodone Hcl | 12 | 36 | $35.35 | 11 |
| Nitroglycerin | Nitroglycerin | 12 | 407 | $177.39 | 12 |
| Klor-Con M20 | Potassium Chloride | 11 | 219 | $39.52 | 11 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-08-13NUCC Taxonomy Code: 207R00000X
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.
NUCC Taxonomy Code: 152W00000X
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
NUCC Taxonomy Code: 208M00000X
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - HOSPITALIST
I20150622002033
MI
1658307954
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Ohiohealth Corporation
1000 Mckinley Park Dr, Marion, OH 433026399
Phone: 7403838400
Ohiohealth Corporation
335 Glessner Ave, Mansfield, OH 449032269
Phone: 4195268581
Southwest Medical Center
305 W 15th St, Liberal, KS 679012455
Southwest Medical Center
315 W 15th St, Liberal, KS 679012455
Phone: 6206241651
Mvhe Inc
1 Medical Ctr Dr, Middletown, OH 450052584
Phone: 5137054754
Secondary Practice Locations
4100 River Rd, Acute Care Dept.
East China, MI 48054
Phone: 8103295330
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Nurse Practitioner
Certified Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1000 MCKINLEY PARK DR, MARION, OH 433026399 (Tel: 7403838473)
Registered at PO BOX 7527, DUBLIN, OH 430170727 (Tel: 6145446366)
Additional practice office at 4100 River Rd, Acute Care Dept., East China, MI 48054
Internal Medicine (license number reported to NPPES: MI 4301100071)
Registered at 201 N RIVERSIDE AVE STE D3, SAINT CLAIR, MI 480795470 (Tel: 8106378736)
Optometrist (license number reported to NPPES: MI 4901004799)
Recorded as KENNETH SON, M.D.
Internal Medicine (license number reported to NPPES: MI 4301100071)
Registered at 4100 RIVER RD, ACUTE CARE DEPT., EAST CHINA, MI 48054 (Tel: 8103295330)
Registered at 55 E LONG LAKE RD # 207, TROY, MI 480854738 (Tel: 5869605358)
NPI status registered as active in NPPES database
Registered at 4100 RIVER RD, ACUTE CARE DEPT., EAST CHINA, MI 480542909 (Tel: 8103295330)
Registered at 4100 RIVER RD, ACUTE CARE DEPT., EAST CHINA, MI 480542909 (Tel: 8103295330)
Recorded as KENNETH SON, M.D., O.D.
Optometrist (license number reported to NPPES: MI 4901004799)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Marion
- Dr. Sudesh Reddy, MD INC
- Dr. Tarlok Purewal, MD
- Dr. Suzanne Schuler, MD
- Dr. Vivek Awasty, MD
- Dr. Parminder Singh, MD
- Dr. Asha Prakash, MD
Mailing Address
Po Box 7527
Dublin, OH 430170727
Phone: 6145446366