2026 NPPES data Endodontics NPI 1477641157 D.D.S.
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THOMAS ACIERNO, D.D.S.

Endodontics in SAN DIEGO, 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
97
Medicare Part D claims · 62 beneficiaries · Endodontics avg: 116
Industry payments
$197.06
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS ACIERNO, D.D.S. is a Endodontics ([object Object]) practicing in SAN DIEGO, California with a Medicare Part D prescribing footprint of 97 claims across 62 beneficiaries . Industry payments of $197.06 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS ACIERNO, D.D.S. filed 97 Medicare Part D claims in 2023 across SAN DIEGO, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

THOMAS ACIERNO, D.D.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/10/2006

NPI 1477641157

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

97 16% 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).

THOMAS ACIERNO, D.D.S. is a Endodontics provider practicing in SAN DIEGO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S.. NPI: 1477641157. 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.

THOMAS ACIERNO, D.D.S. appears in the CMS NPPES registry as a Endodontics provider holding D.D.S. credentials at 3867 CLAIREMONT DR, SAN DIEGO, CA, 92117, with a listed phone of (619) 276-5526. NPI 1477641157 was issued on 10/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ACIERNO 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 97 prescription claims written by this provider, covering 62 Medicare beneficiaries and totaling roughly $725 in drug spend, with an opioid prescribing rate of 17.5%. 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

3867 CLAIREMONT DR
SAN DIEGO, CA 92117

Provider Details

NPI 1477641157
Specialty Endodontics
Credentials D.D.S.
Gender Male
NPI Issued 10/10/2006

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 THOMAS ACIERNO, D.D.S.. Source: openpaymentsdata.cms.gov.

Total received

$197

Largest payer

PATTERSON COMPANIES, 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 THOMAS ACIERNO, D.D.S.. To verify THOMAS ACIERNO, D.D.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.

97
Total Claims
$725
Total Drug Cost
62
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
97
Total Day Supply
847
Brand Drug Cost
$0
Generic Drug Cost
$725
Opioid Claims
17 (17.5% rate)
Antibiotic Claims
75

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.97
Gender Split
56% female / 44% 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
59

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

Endodontics Overview

How THOMAS ACIERNO, D.D.S. fits within the Endodontics landscape nationally.

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

THOMAS ACIERNO, D.D.S.'s 97 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 ACIERNO.

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

Frequently Asked Questions

What is THOMAS ACIERNO, D.D.S.'s specialty?
THOMAS ACIERNO, D.D.S. specializes in Endodontics and practices in SAN DIEGO, California. Credentials: D.D.S..
How much does THOMAS ACIERNO, D.D.S. prescribe under Medicare Part D?
In 2023, THOMAS ACIERNO, D.D.S. wrote 97 Medicare Part D claims totaling $725 in drug costs for 62 beneficiaries.
Where is THOMAS ACIERNO, D.D.S. located?
THOMAS ACIERNO, D.D.S. is located at 3867 CLAIREMONT DR, SAN DIEGO, CA, 92117. Phone: (619) 276-5526.
What is THOMAS ACIERNO, D.D.S.'s NPI number?
THOMAS ACIERNO, D.D.S.'s National Provider Identifier (NPI) is 1477641157, issued on 10/10/2006.
Does THOMAS ACIERNO, D.D.S. prescribe opioids?
Yes, THOMAS ACIERNO, D.D.S. had 17 opioid claims in 2023 with an opioid prescribing rate of 17.5%.
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 THOMAS ACIERNO, D.D.S. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS ACIERNO, D.D.S.'s most frequently prescribed drugs include Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS ACIERNO, D.D.S. accept Medicare?
THOMAS ACIERNO, D.D.S. appears in CMS Medicare data with 97 Part D claims and 62 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS ACIERNO, D.D.S.'s credentials?
THOMAS ACIERNO, D.D.S.'s NPI is 1477641157 with credentials D.D.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