Wonsick Choe
General Practice • Walnut, CA
20627 Golden Springs Dr Ste 1b
Walnut, CA 917894815
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on November 18, 2014; this date does not establish years in practice.
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Published CMS data list 14 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.
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Published Part B service records, 2024:
- 82962 — Blood glucose (sugar) test performed by hand-held instrument: 14 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 1,600 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.
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Published Part D records, 2024:
- Lisinopril — 197 prescription fills, including refills.
- Atorvastatin Calcium — 117 prescription fills, including refills.
- Metformin Hcl — 115 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 41 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 95% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: 485. Middle half: 154 to 2,019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 22 in 2017 to 14 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2024.
Practice Location & Contact Primary Location
20627 Golden Springs Dr Ste 1b
Walnut, CA 917894815
NPPES lists 2 distinct additional practice-address records in Harrington Park, NJ; Norwalk, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Ampla Health; Jonah Medical Group 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
1997
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
15 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 $45 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 $45 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
2,417 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
$85,037 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: $296.94 across 13 records.
By nature of payment
- Food and Beverage: $296.94 across 13 records.
Reporting-company totals (3 largest of 7)
- Dexcom, Inc.: $76.04 across 3 records.
- ViiV Healthcare Company: $59.93 across 2 records.
- Novo Nordisk Inc: $52.32 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
29 years (graduated 1997)
CMS Doctors and Clinicians data list 1997 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
2014
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?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Wonsick Choe 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 Wonsick Choe 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 Walnut and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 95% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: 485. Middle half: 154 to 2,019.
Too few clinicians listed under General Practice in Walnut have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 95% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $45,658. Middle half: $15,010 to $165,277.
Too few clinicians listed under General Practice in Walnut have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 95% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $32,130. Middle half: $11,436 to $131,972.
Too few clinicians listed under General Practice in Walnut have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 60% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: 758. Middle half: 125 to 3,707.
Too few clinicians listed under General Practice in Walnut have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: $48,894. Middle half: $2,044 to $279,308.
Too few clinicians listed under General Practice in Walnut have Medicare Part D data for 2024 to compare.
2 active clinicians are listed under General Practice with a practice address in Walnut, CA (1,963 in California).
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.
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Medicare Part B services
Medicare Part B services decreased 36% from 22 in 2017 to 14 in 2024.
- 2017: 22
- 2019: 13
- 2020: 30
- 2023: 17
- 2024: 14
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Medicare-allowed amount
Medicare-allowed amount went from $959 in 2017 to $45 in 2024.
- 2017: $959
- 2019: $137
- 2020: $286
- 2023: $55
- 2024: $45
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Paid by Medicare
Paid by Medicare went from $658 in 2017 to $45 in 2024.
- 2017: $658
- 2019: $137
- 2020: $286
- 2023: $55
- 2024: $45
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 75% from 6,490 in 2020 to 1,600 in 2024.
- 2020: 6,490
- 2021: 4,151
- 2022: 1,665
- 2023: 1,545
- 2024: 1,600
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30-day fills
30-day fills decreased 73% from 8,849 in 2020 to 2,417 in 2024.
- 2020: 8,849
- 2021: 5,661
- 2022: 2,042
- 2023: 2,021
- 2024: 2,417
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Part D drug cost
Part D drug cost decreased 73% from $316,821 in 2020 to $85,037 in 2024.
- 2020: $316,821
- 2021: $179,445
- 2022: $43,842
- 2023: $53,367
- 2024: $85,037
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $209.48 in 2019 to $296.94 in 2025.
- 2019: $209.48
- 2022: $130.16
- 2023: $338.10
- 2024: $214.24
- 2025: $296.94
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): 13 records totaling $296.94.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $33.01 |
| ViiV Healthcare Company |
Food and Beverage
In-kind items and services
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APRETUDE | General | $31.02 |
| ViiV Healthcare Company |
Food and Beverage
In-kind items and services
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APRETUDE | General | $28.91 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $26.23 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $25.83 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $23.98 |
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
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VOQUEZNA | General | $23.77 |
| HOLOGIC INC |
Food and Beverage
In-kind items and services
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APTIMA | General | $21.00 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $19.31 |
| BioMarin Pharmaceutical Inc. |
Food and Beverage
In-kind items and services
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VOXZOGO 1.2mg | General | $19.22 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $15.60 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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The Cologuard Plus Collection Kit | General | $14.81 |
| HOLOGIC INC |
Food and Beverage
In-kind items and services
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APTIMA | General | $14.25 |
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 |
|---|---|---|---|---|
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82962
Blood glucose (sugar) test performed by hand-held instrument
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14 | 13 | $15.00 | $3.21 |
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 |
|---|---|---|---|---|---|
| Lisinopril | Lisinopril | 197 | 8,310 | $305.70 | 39 |
| Atorvastatin Calcium | Atorvastatin Calcium | 117 | 6,634 | $348.31 | 29 |
| Metformin Hcl | Metformin Hcl | 115 | 6,660 | $196.80 | 31 |
| Amlodipine Besylate | Amlodipine Besylate | 109 | 6,450 | $195.19 | 27 |
| Simvastatin | Simvastatin | 100 | 4,680 | $226.29 | 22 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 69 | 1,971 | $2,238.12 | 15 |
| Ibuprofen | Ibuprofen | 68 | 2,168 | $383.09 | 21 |
| Levothyroxine Sodium | Levothyroxine Sodium | 64 | 2,976 | $473.71 | 12 |
| Omeprazole | Omeprazole | 55 | 2,430 | $165.35 | 13 |
| Losartan Potassium | Losartan Potassium | 46 | 3,120 | $115.29 | 12 |
| Carvedilol | Carvedilol | 45 | 2,055 | $88.82 | — |
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 43 | 938 | $9,135.38 | — |
| Gabapentin | Gabapentin | 42 | 1,380 | $240.48 | 12 |
| Furosemide | Furosemide | 42 | 1,800 | $77.46 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 38 | 1,414 | $147.94 | — |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 30 | 1,100 | $2,764.18 | — |
| Trazodone Hcl | Trazodone Hcl | 28 | 1,050 | $97.13 | — |
| Januvia | Sitagliptin Phosphate | 24 | 840 | $14,781.69 | — |
| Metoprolol Succinate | Metoprolol Succinate | 22 | 1,320 | $208.55 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 22 | 1,186 | $106.36 | — |
| Clopidogrel | Clopidogrel Bisulfate | 21 | 1,030 | $80.48 | — |
| Ropinirole Hcl | Ropinirole Hcl | 21 | 1,153 | $143.10 | — |
| Famotidine | Famotidine | 19 | 1,050 | $49.72 | — |
| Metoprolol Tartrate | Metoprolol Tartrate | 18 | 720 | $38.42 | — |
| Glipizide | Glipizide | 18 | 780 | $40.72 | — |
(top 25 shown)
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: 2026-01-05NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
NUCC Taxonomy Code: 207U00000X
A nuclear medicine specialist employs the properties of radioactive atoms and molecules in the diagnosis and treatment of disease and in research. Radiation detection and imaging instrument systems are used to detect disease as it changes the function and metabolism of normal cells, tissues and organs. A wide variety of diseases can be found in this way, usually before the structure of the organ involved by the disease can be seen to be abnormal by any other techniques. Early detection of coronary artery disease (including acute heart attack), early cancer detection and evaluation of the effect of tumor treatment, diagnosis of infection and inflammation anywhere in the body and early detection of blood clot in the lungs are all possible with these techniques. Unique forms of radioactive molecules can attack and kill cancer cells (e.g., lymphoma, thyroid cancer) or can relieve the severe pain of cancer that has spread to bone
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL PRACTICE
I20170601001041
CA
1658663281
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
Ampla Health
2800 Lincoln St, Oroville, CA 959665961
Phone: 5305347500
Ampla Health
4941 Olivehurst Ave, Olivehurst, CA 959614225
Phone: 5307434611
Jonah Medical Group Inc
20627 Golden Springs Dr, Diamond Bar, CA 917894815
Phone: 8008215675
Secondary Practice Locations
11637 The Plz Unit 45
Norwalk, CA 906503930
Phone: 5628090142
115 N Colonial Dr
Harrington Park, NJ 076401063
Phone: 7185945868
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 - Family
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 20627 GOLDEN SPRINGS DR STE 1B, WALNUT, CA 917894815 (Tel: 9094800200)
Registered at PO BOX 32039, LOS ANGELES, CA 900320039 (Tel: 3235171274)
NPI status registered as active in NPPES database
Registered at 115 N COLONIAL DR, HARRINGTON PARK, NJ 076401063 (Tel: 7185945868)
Registered at 115 N COLONIAL DR, HARRINGTON PARK, NJ 076401063 (Tel: 7185945868)
Recorded as WONSICK CHOE
Nuclear Medicine (license number reported to NPPES: CA C42362)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
Po Box 32039
Los Angeles, CA 900320039
Phone: 3235171274