NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1740336098 M.D.
Verify on CMS → Ching Chiu, M.D.
Hematology (Internal Medicine) Physician in Tulare, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,436 in Hematology (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 · 243 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$493.57
7 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ching Chiu, M.D. filed 3,443 Medicare Part D claims in 2023 as a Hematology (Internal Medicine) Physician in Tulare, California, prescribing 89% generic.
- 3K
- Part D claims, 2023
- 89%
- generic prescribing
- $493.57
- industry payments (Sunshine Act)
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.
Ching Chiu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,443 Top 10% higher than 90% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Ching Chiu, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ching Chiu, M.D.?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
3,443 397% vs specialty avg
Specialty distribution in California
How Hematology (Internal Medicine) Physician compares to other specialties among California 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 Hematology (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).
Ching Chiu, M.D. appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding M.D. credentials at 1044 N CHERRY ST, Tulare, CA, 93274, with a listed phone of (559) 686-7048. NPI 1740336098 was issued on 01/26/2007.
Medicare Part D records for calendar year 2023 show 3,443 prescription claims written by this provider, covering 243 Medicare beneficiaries and totaling roughly $259K in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 4.4%.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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 | 1740336098 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/26/2007 |
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 Ching Chiu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$494
Largest payer
Boehringer Ingelheim Pharmaceuticals, Inc.
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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Ching Chiu, M.D.. To verify Ching Chiu, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Ching Chiu, M.D. - brand share 10.0%
Hematology (Internal Medicine) Physician average
10% brand-name claims vs 89% generic, on 3,443 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,443
Total Claims
$259K
Total Drug Cost
243
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,168
- Total Day Supply
- 236,358
- Brand vs Generic
- 10% brand / 89% generic
- Brand Drug Cost
- $206K
- Generic Drug Cost
- $53K
- Opioid Claims
- 151 (4.4% rate)
- Antibiotic Claims
- 197
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.15
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ching Chiu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
227 claims
- Amlodipine Besylate
Amlodipine Besylate
210 claims
- Metformin Hcl
Metformin Hcl
173 claims
- Levothyroxine Sodium
Levothyroxine Sodium
147 claims
- Atenolol
Atenolol
121 claims
- Azithromycin
Azithromycin
113 claims
- Omeprazole
Omeprazole
111 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
94 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 227 |
| Amlodipine Besylate | 210 |
| Metformin Hcl | 173 |
| Levothyroxine Sodium | 147 |
| Atenolol | 121 |
| Azithromycin | 113 |
| Omeprazole | 111 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 94 |
| Losartan Potassium | 93 |
| Valsartan | 78 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in CA →
All providers in California →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Ching Chiu, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Ching Chiu, M.D.'s 3,443 claims are above the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chiu.
Dr. Haifaa Abdulhaq
MD
Fresno, CA
Dr. John Adamson
MD
San Diego, CA
Dr. Idoroenyi Amanam
M.D.
Duarte, CA
Dr. Ian Anderson
M.D.
Santa Rosa, CA
Dr. Sally Arai
MD
Stanford, CA
Compare Hematology (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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is Ching Chiu, M.D.'s specialty? ▼
Ching Chiu, M.D. specializes in Hematology (Internal Medicine) Physician and practices in Tulare, California. Credentials: M.D..
How much does Ching Chiu, M.D. prescribe under Medicare Part D? ▼
In 2023, Ching Chiu, M.D. wrote 3,443 Medicare Part D claims totaling $259K in drug costs for 243 beneficiaries.
Where is Ching Chiu, M.D. located? ▼
Ching Chiu, M.D. is located at 1044 N CHERRY ST, Tulare, CA, 93274. Phone: (559) 686-7048.
What is Ching Chiu, M.D.'s NPI number? ▼
Ching Chiu, M.D.'s National Provider Identifier (NPI) is 1740336098, issued on 01/26/2007.
Does Ching Chiu, M.D. prescribe more brand-name or generic drugs? ▼
Ching Chiu, M.D.'s prescribing is 10% brand-name and 89% generic drugs by claim count, with $206K in brand drug costs.
Does Ching Chiu, M.D. prescribe opioids? ▼
Yes, Ching Chiu, M.D. had 151 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Ching Chiu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ching Chiu, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ching Chiu, M.D. accept Medicare? ▼
Ching Chiu, M.D. appears in CMS Medicare data with 3,443 Part D claims and 243 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ching Chiu, M.D.'s credentials? ▼
Ching Chiu, M.D.'s NPI is 1740336098 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
Compiled from official public sources by the PlainDoctor editorial team.