2026 NPPES data Registered Dietitian NPI 1689948168 PA-C
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CHIENWEI KUNG, PA-C

Registered Dietitian in CARMICHAEL, 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
3K
Medicare Part D claims · 313 beneficiaries · Registered Dietitian avg: 696
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$31.77
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHIENWEI KUNG, PA-C filed 3,227 Medicare Part D claims in 2023 as a Registered Dietitian in CARMICHAEL, California, prescribing 87% generic.

3K
Part D claims, 2023
87%
generic prescribing
$31.77
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.

CHIENWEI KUNG, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

3,227 Top 11% higher than 89% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

What does the federal data show about CHIENWEI KUNG, PA-C?

Quality data not reported

NPI registry status

Active

Issued 03/01/2012

NPI 1689948168

Primary specialty

Registered Dietitian

High-volume

64,100 US NPIs in this specialty

Medicare Part D claims

3,227 364% vs specialty avg

2023 prescription claims

Specialty avg: 696

Specialty distribution in California

How Registered Dietitian compares to other specialties among California providers

California providers

Registered Dietitian share within California

1. Registered Dietitian42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Dietitian share within California

Specialty board-certification context

Estimated specialty board-certified rate — Registered Dietitian (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Registered Dietitian ABMS/AOA estimate

Est. board-certified rate (Registered Dietitian) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Registered Dietitian) — ABMS / AOA estimate

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).

CHIENWEI KUNG, PA-C appears in the CMS NPPES registry as a Registered Dietitian provider holding PA-C credentials at 5931 STANLEY AVE STE 8, CARMICHAEL, CA, 95608, with a listed phone of (916) 481-4389. NPI 1689948168 was issued on 03/01/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUNG 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 3,227 prescription claims written by this provider, covering 313 Medicare beneficiaries and totaling roughly $311K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 7.6%. 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.

Registered Dietitian is a high-volume specialty nationwide, with 64,100 enrolled providers across 55 states and an average of 696 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

5931 STANLEY AVE STE 8
CARMICHAEL, CA 95608

Provider Details

NPI 1689948168
Specialty Registered Dietitian
Credentials PA-C
Gender Male
NPI Issued 03/01/2012

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 CHIENWEI KUNG, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$32

Largest payer

Lilly USA, 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 CHIENWEI KUNG, PA-C. To verify CHIENWEI KUNG, PA-C'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

CHIENWEI KUNG, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 3,227 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.

3,227
Total Claims
$311K
Total Drug Cost
313
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,173
Total Day Supply
178,169
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$231K
Generic Drug Cost
$78K
Opioid Claims
245 (7.6% rate)
Antibiotic Claims
72

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
1.41
Gender Split
75% female / 25% male
Age Distribution
<65: 40, 65-74: 146, 75-84: 93, 85+: 34

Top Prescribed Drugs (Medicare Part D)

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

What CHIENWEI KUNG, PA-C 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
Levothyroxine Sodium
170
Amlodipine Besylate
148
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
130
Losartan Potassium
108
Atorvastatin Calcium
97
Lisinopril
91
Albuterol Sulfate Hfa
Albuterol Sulfate
67
Gabapentin
66
Zolpidem Tartrate
66
Omeprazole
60

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

Registered Dietitian Overview

How CHIENWEI KUNG, PA-C fits within the Registered Dietitian landscape nationally.

64,100
Registered Dietitian Providers in US
55
States with Registered Dietitian
696
Avg Claims per Provider

CHIENWEI KUNG, PA-C's 3,227 claims are above the specialty average of 696.

Nearby Registered Dietitian Providers in California

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

Compare Registered Dietitian nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHIENWEI KUNG, PA-C's specialty?
CHIENWEI KUNG, PA-C specializes in Registered Dietitian and practices in CARMICHAEL, California. Credentials: PA-C.
How much does CHIENWEI KUNG, PA-C prescribe under Medicare Part D?
In 2023, CHIENWEI KUNG, PA-C wrote 3,227 Medicare Part D claims totaling $311K in drug costs for 313 beneficiaries.
Where is CHIENWEI KUNG, PA-C located?
CHIENWEI KUNG, PA-C is located at 5931 STANLEY AVE STE 8, CARMICHAEL, CA, 95608. Phone: (916) 481-4389.
What is CHIENWEI KUNG, PA-C's NPI number?
CHIENWEI KUNG, PA-C's National Provider Identifier (NPI) is 1689948168, issued on 03/01/2012.
Does CHIENWEI KUNG, PA-C prescribe more brand-name or generic drugs?
CHIENWEI KUNG, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $231K in brand drug costs.
Does CHIENWEI KUNG, PA-C prescribe opioids?
Yes, CHIENWEI KUNG, PA-C had 245 opioid claims in 2023 with an opioid prescribing rate of 7.6%.
How many Registered Dietitian providers are there in the US?
There are 64,100 Registered Dietitian providers across 55 states in the US. The average Registered Dietitian provider writes 696 Medicare Part D claims per year.
What drugs does CHIENWEI KUNG, PA-C prescribe most often?
Based on 2023 Medicare Part D data, CHIENWEI KUNG, PA-C's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHIENWEI KUNG, PA-C accept Medicare?
CHIENWEI KUNG, PA-C appears in CMS Medicare data with 3,227 Part D claims and 313 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHIENWEI KUNG, PA-C's credentials?
CHIENWEI KUNG, PA-C's NPI is 1689948168 with credentials PA-C. 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.
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