2026 NPPES data Endodontics NPI 1255438172 D.D.S., M.S.
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CAROLYN CHONG, D.D.S., M.S.

Endodontics in BERKELEY, 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
92
Medicare Part D claims · 63 beneficiaries · Endodontics avg: 116
What the federal data reveals: CAROLYN CHONG, D.D.S., M.S. is a Endodontics ([object Object]) practicing in BERKELEY, California with a Medicare Part D prescribing footprint of 92 claims across 63 beneficiaries .

What stands out: CAROLYN CHONG, D.D.S., M.S. filed 92 Medicare Part D claims in 2023 across BERKELEY, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CAROLYN CHONG, D.D.S., M.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 09/20/2006

NPI 1255438172

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

92 21% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in California

How Endodontics compares to other specialties among California providers

California providers

Endodontics share within California

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within California

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Endodontics) — 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).

CAROLYN CHONG, D.D.S., M.S. is a Endodontics provider practicing in BERKELEY, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S., M.S.. NPI: 1255438172. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CAROLYN CHONG, D.D.S., M.S. appears in the CMS NPPES registry as a Endodontics provider holding D.D.S., M.S. credentials at 2850 TELEGRAPH AVE, BERKELEY, CA, 94705, with a listed phone of (510) 841-6357. NPI 1255438172 was issued on 09/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHONG 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 92 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $651 in drug spend, with an opioid prescribing rate of 21.7%. 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

2850 TELEGRAPH AVE
BERKELEY, CA 94705

Provider Details

NPI 1255438172
Specialty Endodontics
Credentials D.D.S., M.S.
Gender Female
NPI Issued 09/20/2006

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 CAROLYN CHONG, D.D.S., M.S.. To verify CAROLYN CHONG, D.D.S., M.S.'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

92
Total Claims
$651
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
92
Total Day Supply
672
Generic Drug Cost
$644
Opioid Claims
20 (21.7% rate)
Antibiotic Claims
63

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
0.92
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amoxicillin
45
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18

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

Endodontics Overview

How CAROLYN CHONG, D.D.S., M.S. fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

CAROLYN CHONG, D.D.S., M.S.'s 92 claims are below the specialty average of 116.

Nearby Endodontics Providers in California

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

Compare Endodontics nationally: see state-by-state distribution →

Frequently Asked Questions

What is CAROLYN CHONG, D.D.S., M.S.'s specialty?
CAROLYN CHONG, D.D.S., M.S. specializes in Endodontics and practices in BERKELEY, California. Credentials: D.D.S., M.S..
How much does CAROLYN CHONG, D.D.S., M.S. prescribe under Medicare Part D?
In 2023, CAROLYN CHONG, D.D.S., M.S. wrote 92 Medicare Part D claims totaling $651 in drug costs for 63 beneficiaries.
Where is CAROLYN CHONG, D.D.S., M.S. located?
CAROLYN CHONG, D.D.S., M.S. is located at 2850 TELEGRAPH AVE, BERKELEY, CA, 94705. Phone: (510) 841-6357.
What is CAROLYN CHONG, D.D.S., M.S.'s NPI number?
CAROLYN CHONG, D.D.S., M.S.'s National Provider Identifier (NPI) is 1255438172, issued on 09/20/2006.
Does CAROLYN CHONG, D.D.S., M.S. prescribe opioids?
Yes, CAROLYN CHONG, D.D.S., M.S. had 20 opioid claims in 2023 with an opioid prescribing rate of 21.7%.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does CAROLYN CHONG, D.D.S., M.S. prescribe most often?
Based on 2023 Medicare Part D data, CAROLYN CHONG, D.D.S., M.S.'s most frequently prescribed drugs include Amoxicillin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CAROLYN CHONG, D.D.S., M.S. accept Medicare?
CAROLYN CHONG, D.D.S., M.S. appears in CMS Medicare data with 92 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CAROLYN CHONG, D.D.S., M.S.'s credentials?
CAROLYN CHONG, D.D.S., M.S.'s NPI is 1255438172 with credentials D.D.S., M.S.. 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