2026 NPPES data Periodontics NPI 1629118294 DMD
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NATHAN SHAPIRO, DMD

Periodontics in VENTURA, 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
305
Medicare Part D claims · 87 beneficiaries · Periodontics avg: 264

What the federal data shows

NATHAN SHAPIRO, DMD filed 305 Medicare Part D claims in 2023 as a Periodontics in VENTURA, California.

305
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.

NATHAN SHAPIRO, DMD's Medicare Part D volume vs every U.S. prescriber

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

305 Top 43% higher than 57% 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 NATHAN SHAPIRO, DMD?

Quality data not reported

NPI registry status

Active

Issued 02/06/2007

NPI 1629118294

Primary specialty

Periodontics

Mid-sized

6,061 US NPIs in this specialty

Medicare Part D claims

305 16% vs specialty avg

2023 prescription claims

Specialty avg: 264

Specialty distribution in California

How Periodontics compares to other specialties among California providers

California providers

Periodontics share within California

1. Periodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Periodontics share within California

Specialty board-certification context

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

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

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

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

NATHAN SHAPIRO, DMD appears in the CMS NPPES registry as a Periodontics provider holding DMD credentials at 5500 TELEGRAPH RD, VENTURA, CA, 93003, with a listed phone of (805) 644-5619. NPI 1629118294 was issued on 02/06/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHAPIRO 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 305 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 23.0%. 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.

Periodontics is a mid-sized specialty nationwide, with 6,061 enrolled providers across 53 states and an average of 264 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

5500 TELEGRAPH RD
VENTURA, CA 93003

Provider Details

NPI 1629118294
Specialty Periodontics
Credentials DMD
Gender Male
NPI Issued 02/06/2007

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 NATHAN SHAPIRO, DMD. To verify NATHAN SHAPIRO, DMD'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.

305
Total Claims
$2K
Total Drug Cost
87
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
324
Total Day Supply
3,952
Brand Drug Cost
$0
Generic Drug Cost
$2K
Opioid Claims
70 (23.0% rate)
Antibiotic Claims
115

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
0.81
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What NATHAN SHAPIRO, DMD 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
Chlorhexidine Gluconate
94
Amoxicillin
93
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
70
Azithromycin
16
Dexamethasone
11

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

Periodontics Overview

How NATHAN SHAPIRO, DMD fits within the Periodontics landscape nationally.

6,061
Periodontics Providers in US
53
States with Periodontics
264
Avg Claims per Provider

NATHAN SHAPIRO, DMD's 305 claims are above the specialty average of 264.

Nearby Periodontics Providers in California

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

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

Frequently Asked Questions

What is NATHAN SHAPIRO, DMD's specialty?
NATHAN SHAPIRO, DMD specializes in Periodontics and practices in VENTURA, California. Credentials: DMD.
How much does NATHAN SHAPIRO, DMD prescribe under Medicare Part D?
In 2023, NATHAN SHAPIRO, DMD wrote 305 Medicare Part D claims totaling $2K in drug costs for 87 beneficiaries.
Where is NATHAN SHAPIRO, DMD located?
NATHAN SHAPIRO, DMD is located at 5500 TELEGRAPH RD, VENTURA, CA, 93003. Phone: (805) 644-5619.
What is NATHAN SHAPIRO, DMD's NPI number?
NATHAN SHAPIRO, DMD's National Provider Identifier (NPI) is 1629118294, issued on 02/06/2007.
Does NATHAN SHAPIRO, DMD prescribe opioids?
Yes, NATHAN SHAPIRO, DMD had 70 opioid claims in 2023 with an opioid prescribing rate of 23.0%.
How many Periodontics providers are there in the US?
There are 6,061 Periodontics providers across 53 states in the US. The average Periodontics provider writes 264 Medicare Part D claims per year.
What drugs does NATHAN SHAPIRO, DMD prescribe most often?
Based on 2023 Medicare Part D data, NATHAN SHAPIRO, DMD's most frequently prescribed drugs include Chlorhexidine Gluconate, Amoxicillin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATHAN SHAPIRO, DMD accept Medicare?
NATHAN SHAPIRO, DMD appears in CMS Medicare data with 305 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATHAN SHAPIRO, DMD's credentials?
NATHAN SHAPIRO, DMD's NPI is 1629118294 with credentials DMD. 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