2026 NPPES data Occupational Health Nurse Practitioner NPI 1518060656 NP
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GEORGE GIANNAKOS, NP

Occupational Health Nurse Practitioner in WASHINGTON, District of Columbia. 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.

What the federal data shows

GEORGE GIANNAKOS, NP is a Occupational Health Nurse Practitioner in WASHINGTON, District of Columbia, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about GEORGE GIANNAKOS, NP?

Quality data not reported

NPI registry status

Active

Issued 09/06/2006

NPI 1518060656

Primary specialty

Occupational Health Nurse Practitioner

Rare

369 US NPIs in this specialty

Specialty distribution in District of Columbia

How Occupational Health Nurse Practitioner compares to other specialties among District of Columbia providers

District of Columbia providers

Occupational Health Nurse Practitioner share within District of Columbia

1. Occupational Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Occupational Health Nurse Practitioner share within District of Columbia

Specialty board-certification context

Estimated specialty board-certified rate — Occupational Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Occupational Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Occupational Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Occupational Health Nurse Practitioner) — 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).

GEORGE GIANNAKOS, NP appears in the CMS NPPES registry as a Occupational Health Nurse Practitioner provider holding NP credentials at 50 IRVING ST NW, WASHINGTON, DC, 20422, with a listed phone of (202) 745-8254. NPI 1518060656 was issued on 09/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GIANNAKOS 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Occupational Health Nurse Practitioner providers operate outside Part D entirely.

Occupational Health Nurse Practitioner is a narrow specialty nationwide, with 369 enrolled providers across 47 states and an average of 1,135 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

50 IRVING ST NW
WASHINGTON, DC 20422

Provider Details

NPI 1518060656
Specialty Occupational Health Nurse Practitioner
Credentials NP
Gender Male
NPI Issued 09/06/2006

Occupational Health Nurse Practitioner Overview

How GEORGE GIANNAKOS, NP fits within the Occupational Health Nurse Practitioner landscape nationally.

369
Occupational Health Nurse Practitioner Providers in US
47
States with Occupational Health Nurse Practitioner
1,135
Avg Claims per Provider

Nearby Occupational Health Nurse Practitioner Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as GIANNAKOS.

Compare Occupational Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is GEORGE GIANNAKOS, NP's specialty?
GEORGE GIANNAKOS, NP specializes in Occupational Health Nurse Practitioner and practices in WASHINGTON, District of Columbia. Credentials: NP.
Where is GEORGE GIANNAKOS, NP located?
GEORGE GIANNAKOS, NP is located at 50 IRVING ST NW, WASHINGTON, DC, 20422. Phone: (202) 745-8254.
What is GEORGE GIANNAKOS, NP's NPI number?
GEORGE GIANNAKOS, NP's National Provider Identifier (NPI) is 1518060656, issued on 09/06/2006.
How many Occupational Health Nurse Practitioner providers are there in the US?
There are 369 Occupational Health Nurse Practitioner providers across 47 states in the US. The average Occupational Health Nurse Practitioner provider writes 1,135 Medicare Part D claims per year.
Does GEORGE GIANNAKOS, NP accept Medicare?
GEORGE GIANNAKOS, NP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GEORGE GIANNAKOS, NP's credentials?
GEORGE GIANNAKOS, NP's NPI is 1518060656 with credentials NP. 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.
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