2026 NPPES data Ophthalmology Physician NPI 1568523751 M.D.
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CHI-HUA FANG, M.D.

Ophthalmology Physician in WALNUT CREEK, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
490
Medicare Part D claims · 185 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$245.18
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHI-HUA FANG, M.D. reported a CMS MIPS final score of 0/100 — below the 83.1 national average — and filed 490 Medicare Part D claims in 2023.

0/100
MIPS score · -83 vs avg
490
Part D claims, 2023
51%
generic prescribing
Likely
board-certified (heuristic)

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.

CHI-HUA FANG, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

0 0th percentile higher than 0% of 477,587 scored providers

0–10: 8,684 scored providers (2%). This entry sits in this band. 10–20: 3,008 scored providers (1%). Above this entry. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CHI-HUA FANG, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 CHI-HUA FANG, M.D.?

Below national average

NPI registry status

Active

Issued 12/12/2006

NPI 1568523751

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

490 65% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in California

How Ophthalmology Physician compares to other specialties among California providers

California providers

Ophthalmology Physician share within California

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within California

Medicare quality performance — MIPS

CHI-HUA FANG, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Ophthalmology Physician) — 0/100 vs national avg 83.1

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).

CHI-HUA FANG, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 1870 TICE VALLEY BLVD, WALNUT CREEK, CA, 94595, with a listed phone of (925) 299-9100. NPI 1568523751 was issued on 12/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FANG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 490 prescription claims written by this provider, covering 185 Medicare beneficiaries and totaling roughly $119K in drug spend, split 49% brand-name and 51% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

1870 TICE VALLEY BLVD
WALNUT CREEK, CA 94595

Provider Details

NPI 1568523751
Specialty Ophthalmology Physician
Credentials M.D.
Gender Female
NPI Issued 12/12/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

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 CHI-HUA FANG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$245

Largest payer

Alcon Vision LLC

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 CHI-HUA FANG, M.D.. To verify CHI-HUA FANG, 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 · Above average

CHI-HUA FANG, M.D. — brand share 49.0%
Specialty average (est.)

49% brand-name claims vs 51% generic, on 490 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.

490
Total Claims
$119K
Total Drug Cost
185
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
853
Total Day Supply
22,997
Brand vs Generic
49% brand / 51% generic
Brand Drug Cost
$109K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
79.5 years
Avg HCC Risk Score
1.13
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What CHI-HUA FANG, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisolone Acetate
86
Latanoprost
59
Erythromycin
Erythromycin Base
55
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
47
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
42
Restasis
Cyclosporine
41
Diclofenac Sodium
28
Ketorolac Tromethamine
23
Brimonidine Tartrate
18
Azelastine Hcl
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Ophthalmology Physician Overview

How CHI-HUA FANG, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

CHI-HUA FANG, M.D.'s 490 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as FANG.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHI-HUA FANG, M.D.'s specialty?
CHI-HUA FANG, M.D. specializes in Ophthalmology Physician and practices in WALNUT CREEK, California. Credentials: M.D..
How much does CHI-HUA FANG, M.D. prescribe under Medicare Part D?
In 2023, CHI-HUA FANG, M.D. wrote 490 Medicare Part D claims totaling $119K in drug costs for 185 beneficiaries.
What is CHI-HUA FANG, M.D.'s Medicare quality score?
CHI-HUA FANG, M.D. has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHI-HUA FANG, M.D. located?
CHI-HUA FANG, M.D. is located at 1870 TICE VALLEY BLVD, WALNUT CREEK, CA, 94595. Phone: (925) 299-9100.
What is CHI-HUA FANG, M.D.'s NPI number?
CHI-HUA FANG, M.D.'s National Provider Identifier (NPI) is 1568523751, issued on 12/12/2006.
Does CHI-HUA FANG, M.D. prescribe more brand-name or generic drugs?
CHI-HUA FANG, M.D.'s prescribing is 49% brand-name and 51% generic drugs by claim count, with $109K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does CHI-HUA FANG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHI-HUA FANG, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Erythromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHI-HUA FANG, M.D. accept Medicare?
CHI-HUA FANG, M.D. appears in CMS Medicare data with 490 Part D claims and 185 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHI-HUA FANG, M.D.'s credentials?
CHI-HUA FANG, M.D.'s NPI is 1568523751 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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