NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1144584988 M.D.
Verify on CMS → Christina Huynh, M.D.
Internal Medicine Physician in Glen Ellyn, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 483 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$136.98
7 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Christina Huynh, M.D. filed 2,946 Medicare Part D claims in 2023 as an Internal Medicine Physician in Glen Ellyn, Illinois.
- 3K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥88th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Christina Huynh, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,946 ≥ 88th percentile 88% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Christina Huynh, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Christina Huynh, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
2,946 8% vs specialty avg
Specialty distribution in Illinois
How Internal Medicine Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Christina Huynh, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 430 PENNSYLVANIA AVE, Glen Ellyn, IL, 60137, with a listed phone of (630) 790-1792. NPI 1144584988 was issued on 06/26/2012.
Medicare Part D records for calendar year 2023 show 2,946 prescription claims written by this provider, covering 483 Medicare beneficiaries and totaling roughly $147K in drug spend.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1144584988 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/26/2012 |
Hospital and facility affiliations
Facilities where Christina Huynh, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Dupage Medical Group Ltd
Schaumburg, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Christina Huynh, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$137
Largest payer
Exact Sciences Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Christina Huynh, M.D.. To verify Christina Huynh, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,946
Total Claims
$147K
Total Drug Cost
483
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,867
- Total Day Supply
- 232,700
- Generic Drug Cost
- $51K
- Antibiotic Claims
- 81
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 0.96
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 14, 65-74: 248, 75-84: 172, 85+: 49
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christina Huynh, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
315 claims
- Levothyroxine Sodium
Levothyroxine Sodium
200 claims
- Amlodipine Besylate
Amlodipine Besylate
196 claims
- Metoprolol Succinate
Metoprolol Succinate
143 claims
- Lisinopril
Lisinopril
135 claims
- Losartan Potassium
Losartan Potassium
129 claims
- Hydrochlorothiazide 115
Hydrochlorothiazide
115 claims
- Omeprazole 81
Omeprazole
81 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 315 |
| Levothyroxine Sodium | 200 |
| Amlodipine Besylate | 196 |
| Metoprolol Succinate | 143 |
| Lisinopril | 135 |
| Losartan Potassium | 129 |
| Hydrochlorothiazide | 115 |
| Omeprazole | 81 |
| Pantoprazole Sodium | 66 |
| Simvastatin | 62 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Christina Huynh, M.D. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Christina Huynh, M.D.'s 2,946 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Huynh.
Dr. Hasan Abad
D.O.
Chicago, IL
Dr. Peter Abadeer
D.O.
Bloomington, IL
Dr. Pamela Abadi
D.O.
Winfield, IL
Dr. Motaz Abas
MD
Peoria, IL
Dr. Estefania Abasolo Lopez
MD
Chicago, IL
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Christina Huynh, M.D.'s specialty? ▼
Christina Huynh, M.D. specializes in Internal Medicine Physician and practices in Glen Ellyn, Illinois. Credentials: M.D..
How much does Christina Huynh, M.D. prescribe under Medicare Part D? ▼
In 2023, Christina Huynh, M.D. wrote 2,946 Medicare Part D claims totaling $147K in drug costs for 483 beneficiaries.
Where is Christina Huynh, M.D. located? ▼
Christina Huynh, M.D. is located at 430 PENNSYLVANIA AVE, Glen Ellyn, IL, 60137. Phone: (630) 790-1792.
What is Christina Huynh, M.D.'s NPI number? ▼
Christina Huynh, M.D.'s National Provider Identifier (NPI) is 1144584988, issued on 06/26/2012.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Christina Huynh, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Christina Huynh, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christina Huynh, M.D. accept Medicare? ▼
Christina Huynh, M.D. appears in CMS Medicare data with 2,946 Part D claims and 483 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christina Huynh, M.D.'s credentials? ▼
Christina Huynh, M.D.'s NPI is 1144584988 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.