Dr. Keoni Nguyen , DO
Dermatology • Mason, OH
4834 Socialville Foster Rd
Mason, OH 450406827
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 October 23, 2007; this date does not establish years in practice.
-
Published CMS data list 5,940 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- Q4158 — Kerecis omega3, per square centimeter: 2,127 service units.
- 17003 — Destruction of precancer skin growth, 2-14 growths: 899 service units.
- 99214 — Established patient outpatient office visit: 506 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 34 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 1,639 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Clobetasol Propionate — 402 prescription fills, including refills.
- Fluorouracil — 257 prescription fills, including refills.
- Triamcinolone Acetonide — 204 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 20 records in the table · Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 85% of clinicians listed under Dermatology in Ohio (2024, 363 clinicians with data). Median for this group: 2,065. Middle half: 1,076 to 3,673.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 916 in 2020 to 5,940 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
4834 Socialville Foster Rd
Mason, OH 450406827
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Advanced Dermatology Of Ohio, Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Kansas City University Of Physicians And Surgeons
2006
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
575 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 – by Provider, 2024.
Medicare-allowed amount
About $677,207 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 – by Provider and Service, 2024.
Paid by Medicare
About $522,212 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 – by Provider and Service, 2024.
30-day fills
1,813 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
$186,805 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $1,974.44 across 30 records.
By nature of payment
- Travel and Lodging: $1,529.17 across 2 records.
- Food and Beverage: $445.27 across 28 records.
Reporting-company totals (3 largest of 8)
- Kerecis Limited: $1,529.17 across 2 records.
- ABBVIE INC.: $312.78 across 21 records.
- Bristol Myers Squibb Company: $31.56 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 2025 (published June 30, 2026).
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 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.
NPI first issued
2007
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; Medicare.gov, “Does your provider accept Medicare as full payment?”
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.
Enrolled in Medicare (PECOS)
Dr. Nguyen 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. Nguyen 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 Mason and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Dermatology in Ohio (2024, 363 clinicians with data). Median for this group: 2,065. Middle half: 1,076 to 3,673.
Too few clinicians listed under Dermatology in Mason have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Dermatology in Ohio (2024, 363 clinicians with data). Median for this group: $137,240. Middle half: $69,184 to $237,264.
Too few clinicians listed under Dermatology in Mason have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Dermatology in Ohio (2024, 363 clinicians with data). Median for this group: $91,114. Middle half: $47,586 to $169,550.
Too few clinicians listed under Dermatology in Mason have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Dermatology in Ohio (2024, 398 clinicians with data). Median for this group: 644. Middle half: 280 to 1,144.
Too few clinicians listed under Dermatology in Mason have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Dermatology in Ohio (2024, 398 clinicians with data). Median for this group: $99,003. Middle half: $10,227 to $354,602.
Too few clinicians listed under Dermatology in Mason have Medicare Part D data for 2024 to compare.
8 active clinicians are listed under Dermatology with a practice address in Mason, OH (508 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
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 increased 548% from 916 in 2020 to 5,940 in 2024.
- 2020: 916
- 2021: 2,147
- 2022: 2,446
- 2023: 3,271
- 2024: 5,940
-
Medicare-allowed amount
Medicare-allowed amount increased 384% from $139,985 in 2020 to $677,207 in 2024.
- 2020: $139,985
- 2021: $230,408
- 2022: $273,713
- 2023: $295,951
- 2024: $677,207
-
Paid by Medicare
Paid by Medicare increased 380% from $108,702 in 2020 to $522,212 in 2024.
- 2020: $108,702
- 2021: $172,981
- 2022: $199,280
- 2023: $215,850
- 2024: $522,212
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 881% from 167 in 2020 to 1,639 in 2024.
- 2020: 167
- 2021: 460
- 2022: 694
- 2023: 1,234
- 2024: 1,639
-
30-day fills
30-day fills increased 971% from 169 in 2020 to 1,813 in 2024.
- 2020: 169
- 2021: 462
- 2022: 721
- 2023: 1,294
- 2024: 1,813
-
Part D drug cost
Part D drug cost increased 2222% from $8,044 in 2020 to $186,805 in 2024.
- 2020: $8,044
- 2021: $19,734
- 2022: $110,002
- 2023: $227,330
- 2024: $186,805
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $38.91 in 2021 to $1,974.44 in 2025.
- 2021: $38.91
- 2022: $12.54
- 2023: $30.83
- 2024: $171.71
- 2025: $1,974.44
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 2025 (payments made January 1 – December 31, 2025): 30 records totaling $1,974.44.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Kerecis Limited |
Travel and Lodging
Cash or cash equivalent
|
Kerecis SurgiClose | General | $1,326.64 |
| Kerecis Limited |
Travel and Lodging
Cash or cash equivalent
|
Kerecis SurgiClose | General | $202.53 |
| Verrica Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
YCANTH | General | $27.08 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $23.62 |
| SUN PHARMACEUTICAL INDUSTRIES INC. |
Food and Beverage
In-kind items and services
|
ILUMYA | General | $22.53 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $22.42 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $21.22 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $19.56 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $19.27 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $19.21 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
Otezla | General | $19.17 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $18.40 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $18.33 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $17.39 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
OPZELURA | General | $17.36 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $16.66 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
Sotyktu | General | $16.63 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $15.59 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
Sotyktu | General | $14.93 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $14.81 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
|
Bimzelx | General | $14.79 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $14.75 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $13.28 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $11.78 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $9.18 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
|
Q4158
Kerecis omega3, per square centimeter
|
2,127 | 26 | $308.54 | $128.41 |
|
17003
Destruction of precancer skin growth, 2-14 growths
|
899 | 128 | $35.00 | $5.79 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
506 | 298 | $175.00 | $117.90 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
480 | 290 | $138.92 | $83.07 |
|
11102
Biopsy of related skin growth, first growth
|
289 | 232 | $149.00 | $83.57 |
|
17000
Destruction of precancer skin growth, 1 growth
|
194 | 148 | $172.00 | $55.11 |
|
11103
Biopsy of related skin growth, each additional growth
|
173 | 98 | $81.00 | $44.52 |
|
17311
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks
|
126 | 101 | $1654.00 | $503.13 |
|
J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
|
105 | 51 | $3.18 | $0.97 |
|
15275
Application of skin substitute graft to wound of face, scalp, eyelids, mouth, neck, ears, around eyes, genitals, hands, feet, fingers, or toes, 25.0 sq cm or less of wound 100.0 sq cm or less
|
94 | 16 | $250.00 | $135.09 |
|
17312
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks
|
83 | 56 | $908.00 | $360.49 |
|
99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
78 | 78 | $185.00 | $101.31 |
|
17313
Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks
|
75 | 56 | $1654.00 | $534.59 |
|
17004
Destruction of precancer skin growth, 15 or more growths
|
74 | 55 | $546.00 | $147.96 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
73 | 73 | $215.00 | $154.82 |
|
17110
Destruction of skin growth, 1-14 growths
|
71 | 63 | $218.00 | $98.07 |
|
13121
Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm
|
64 | 57 | $717.00 | $204.92 |
|
11900
Injection into skin growth, 1-7 growths
|
61 | 43 | $105.00 | $45.06 |
|
13132
Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm
|
53 | 48 | $926.00 | $229.96 |
|
15271
Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less
|
43 | 13 | $250.00 | $132.90 |
|
96372
Injection of drug or substance under skin or into muscle
|
40 | 35 | $37.50 | $13.08 |
|
17314
Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks
|
24 | 18 | $908.00 | $344.40 |
|
J0702
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg
|
24 | 18 | $10.58 | $6.57 |
|
69100
Biopsy of ear
|
22 | 20 | $259.00 | $68.29 |
|
11302
Shaving of skin growth of body, arms, or legs, 1.1-2.0 cm
|
20 | 15 | $251.00 | $103.64 |
(top 25 shown)
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 |
|---|---|---|---|---|---|
| Clobetasol Propionate | Clobetasol Propionate | 402 | 10,998 | $17,436.17 | 197 |
| Fluorouracil | Fluorouracil | 257 | 7,267 | $21,565.26 | 183 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 204 | 5,040 | $1,590.72 | 131 |
| Desloratadine | Desloratadine | 182 | 7,350 | $5,024.01 | 65 |
| Ketoconazole | Ketoconazole | 96 | 2,974 | $2,658.99 | 49 |
| Hydrocortisone | Hydrocortisone | 85 | 2,019 | $381.00 | 61 |
| Cephalexin | Cephalexin | 77 | 950 | $1,234.02 | 63 |
| Terbinafine Hcl | Terbinafine Hcl | 46 | 1,348 | $379.82 | 25 |
| Tretinoin | Tretinoin | 42 | 1,539 | $5,162.90 | 13 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 41 | 137 | $178.68 | 34 |
| Doxycycline Hyclate | Doxycycline Hyclate | 39 | 1,199 | $794.19 | 18 |
| Spironolactone | Spironolactone | 35 | 1,350 | $286.40 | — |
| Clindamycin Hcl | Clindamycin Hcl | 25 | 486 | $327.53 | 19 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 22 | 900 | $227.52 | — |
| Methotrexate | Methotrexate Sodium | 18 | 733 | $118.56 | — |
| Clindamycin Phosphate | Clindamycin Phosphate | 16 | 705 | $334.52 | — |
| Acyclovir | Acyclovir | 14 | 436 | $105.72 | — |
| Imiquimod | Imiquimod | 14 | 320 | $337.63 | — |
| Dupixent Pen | Dupilumab | 13 | 364 | $51,266.16 | — |
| Humira(Cf) Pen | Adalimumab | 11 | 308 | $77,394.91 | — |
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: 2025-01-22NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20120423000582
OH
9537320312
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
Advanced Dermatology Of Ohio, Inc
4834 Socialville Foster Rd, Mason, OH 450406827
Phone: 5134591988
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Adult Health
Certified Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4834 SOCIALVILLE FOSTER RD, MASON, OH 450406827 (Tel: 1345919885)
Dermatology (license number reported to NPPES: OH 34.010172)
NPI status registered as active in NPPES database
Registered at 930 BETHESDA DR UNIT 4, ZANESVILLE, OH 437010815 (Tel: 7404547546)
Registered at 244 COLLINS AVE, COLUMBUS, OH 432151657 (Tel: 8082189109)
Recorded as KEONI NGUYEN, D.O.
Dermatology (license number reported to NPPES: OH AO-41225975-705)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dermatology Specialists in Mason
- Dr. Nathan Weir, MD, PhD
- Dr. Stephanie Sayles, DO
- Dr. Jude Khatib, MD
- Dr. Samar Sheriff, MD
- Dr. Elizabeth Uhlenhake, MD
- Dr. Areej Usmani, MD
Mailing Address
244 Collins Ave
Columbus, OH 432151657
Phone: 8082189109