2026 NPPES data Dentist NPI 1407870231 D.M.D.
Verify on CMS →

ANTHONY DIOGUARDI, D.M.D.

Dentist in NEW HAVEN, Connecticut. 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
217
Medicare Part D claims · 92 beneficiaries · Dentist avg: 87

What the federal data shows

ANTHONY DIOGUARDI, D.M.D. filed 217 Medicare Part D claims in 2023 as a Dentist in NEW HAVEN, Connecticut.

217
Part D claims, 2023

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.

ANTHONY DIOGUARDI, D.M.D.'s Medicare Part D volume vs every U.S. prescriber

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

217 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 ANTHONY DIOGUARDI, D.M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/26/2006

NPI 1407870231

Primary specialty

Dentist

High-volume

93,789 US NPIs in this specialty

Medicare Part D claims

217 149% vs specialty avg

2023 prescription claims

Specialty avg: 87

Specialty distribution in Connecticut

How Dentist compares to other specialties among Connecticut providers

Connecticut providers

Dentist share within Connecticut

1. Dentist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dentist share within Connecticut

Specialty board-certification context

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

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

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

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

ANTHONY DIOGUARDI, D.M.D. is a Dentist provider practicing in NEW HAVEN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.M.D.. NPI: 1407870231. 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.

ANTHONY DIOGUARDI, D.M.D. appears in the CMS NPPES registry as a Dentist provider holding D.M.D. credentials at 123 YORK ST, NEW HAVEN, CT, 06511, with a listed phone of (203) 777-2513. NPI 1407870231 was issued on 07/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIOGUARDI 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 217 prescription claims written by this provider, covering 92 Medicare beneficiaries and totaling roughly $3K in drug spend. 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.

Dentist is a high-volume specialty nationwide, with 93,789 enrolled providers across 56 states and an average of 87 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

123 YORK ST
NEW HAVEN, CT 06511

Provider Details

NPI 1407870231
Specialty Dentist
Credentials D.M.D.
Gender Male
NPI Issued 07/26/2006

Medicare Part D Prescribing Data

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

217
Total Claims
$3K
Total Drug Cost
92
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
292
Total Day Supply
7,955

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.10
Gender Split
47% female / 53% 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
Sf 5000 Plus
Fluoride (Sodium)
52
Denta 5000 Plus
Fluoride (Sodium)
38
Sodium Fluoride
Fluoride (Sodium)
28
Prevident
Fluoride (Sodium)
22
Clinpro 5000
Fluoride (Sodium)
20
Prevident 5000 Plus
Fluoride (Sodium)
18
Sodium Fluoride 5000 Plus
Fluoride (Sodium)
17

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

Dentist Overview

How ANTHONY DIOGUARDI, D.M.D. fits within the Dentist landscape nationally.

93,789
Dentist Providers in US
56
States with Dentist
87
Avg Claims per Provider

ANTHONY DIOGUARDI, D.M.D.'s 217 claims are above the specialty average of 87.

Nearby Dentist Providers in Connecticut

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

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

Frequently Asked Questions

What is ANTHONY DIOGUARDI, D.M.D.'s specialty?
ANTHONY DIOGUARDI, D.M.D. specializes in Dentist and practices in NEW HAVEN, Connecticut. Credentials: D.M.D..
How much does ANTHONY DIOGUARDI, D.M.D. prescribe under Medicare Part D?
In 2023, ANTHONY DIOGUARDI, D.M.D. wrote 217 Medicare Part D claims totaling $3K in drug costs for 92 beneficiaries.
Where is ANTHONY DIOGUARDI, D.M.D. located?
ANTHONY DIOGUARDI, D.M.D. is located at 123 YORK ST, NEW HAVEN, CT, 06511. Phone: (203) 777-2513.
What is ANTHONY DIOGUARDI, D.M.D.'s NPI number?
ANTHONY DIOGUARDI, D.M.D.'s National Provider Identifier (NPI) is 1407870231, issued on 07/26/2006.
How many Dentist providers are there in the US?
There are 93,789 Dentist providers across 56 states in the US. The average Dentist provider writes 87 Medicare Part D claims per year.
What drugs does ANTHONY DIOGUARDI, D.M.D. prescribe most often?
Based on 2023 Medicare Part D data, ANTHONY DIOGUARDI, D.M.D.'s most frequently prescribed drugs include Sf 5000 Plus, Denta 5000 Plus, Sodium Fluoride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANTHONY DIOGUARDI, D.M.D. accept Medicare?
ANTHONY DIOGUARDI, D.M.D. appears in CMS Medicare data with 217 Part D claims and 92 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANTHONY DIOGUARDI, D.M.D.'s credentials?
ANTHONY DIOGUARDI, D.M.D.'s NPI is 1407870231 with credentials D.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.
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