2026 NPPES data Oral and Maxillofacial Surgery (Dentist) NPI 1538281068 D.D.S.
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GREGORY DELGADO, D.D.S.

Oral and Maxillofacial Surgery (Dentist) in TIGARD, Oregon. 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
249
Medicare Part D claims · 97 beneficiaries · Oral and Maxillofacial Surgery (Dentist) avg: 378
What the federal data reveals: GREGORY DELGADO, D.D.S. is a Oral and Maxillofacial Surgery (Dentist) ([object Object]) practicing in TIGARD, Oregon with a Medicare Part D prescribing footprint of 249 claims across 97 beneficiaries .

What stands out: GREGORY DELGADO, D.D.S. filed 249 Medicare Part D claims in 2023 across TIGARD, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

GREGORY DELGADO, D.D.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/04/2007

NPI 1538281068

Primary specialty

Oral and Maxillofacial Surgery (Dentist)

Mid-sized

7,631 US NPIs in this specialty

Medicare Part D claims

249 34% vs specialty avg

2023 prescription claims

Specialty avg: 378

Specialty distribution in Oregon

How Oral and Maxillofacial Surgery (Dentist) compares to other specialties among Oregon providers

Oregon providers

Oral and Maxillofacial Surgery (Dentist) share within Oregon

1. Oral and Maxillofacial Surgery (Dentist)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oral and Maxillofacial Surgery (Dentist) share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Oral and Maxillofacial Surgery (Dentist) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oral and Maxillofacial Surgery (Dentist) ABMS/AOA estimate

Est. board-certified rate (Oral and Maxillofacial Surgery (Dentist)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oral and Maxillofacial Surgery (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).

GREGORY DELGADO, D.D.S. is a Oral and Maxillofacial Surgery (Dentist) provider practicing in TIGARD, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S.. NPI: 1538281068. 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.

GREGORY DELGADO, D.D.S. appears in the CMS NPPES registry as a Oral and Maxillofacial Surgery (Dentist) provider holding D.D.S. credentials at 10115 SW NIMBUS AVE, TIGARD, OR, 97223, with a listed phone of (503) 684-7868. NPI 1538281068 was issued on 04/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DELGADO 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 249 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 26.5%. 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.

Oral and Maxillofacial Surgery (Dentist) is a mid-sized specialty nationwide, with 7,631 enrolled providers across 52 states and an average of 378 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

10115 SW NIMBUS AVE
TIGARD, OR 97223

Provider Details

NPI 1538281068
Specialty Oral and Maxillofacial Surgery (Dentist)
Credentials D.D.S.
Gender Male
NPI Issued 04/04/2007

Medicare Part D Prescribing Data

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

249
Total Claims
$1K
Total Drug Cost
97
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
269
Total Day Supply
3,210
Brand Drug Cost
$0
Generic Drug Cost
$1K
Opioid Claims
66 (26.5% rate)
Antibiotic Claims
33

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.20
Gender Split
67% female / 33% male
Age Distribution
<65: 17, 65-74: 58, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Chlorhexidine Gluconate
83
Lidocaine Hcl Viscous
Lidocaine Hcl
64
Oxycodone Hcl
59
Amoxicillin
14
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
12

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

Oral and Maxillofacial Surgery (Dentist) Overview

How GREGORY DELGADO, D.D.S. fits within the Oral and Maxillofacial Surgery (Dentist) landscape nationally.

7,631
Oral and Maxillofacial Surgery (Dentist) Providers in US
52
States with Oral and Maxillofacial Surgery (Dentist)
378
Avg Claims per Provider

GREGORY DELGADO, D.D.S.'s 249 claims are below the specialty average of 378.

Nearby Oral and Maxillofacial Surgery (Dentist) Providers in Oregon

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

Compare Oral and Maxillofacial Surgery (Dentist) nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREGORY DELGADO, D.D.S.'s specialty?
GREGORY DELGADO, D.D.S. specializes in Oral and Maxillofacial Surgery (Dentist) and practices in TIGARD, Oregon. Credentials: D.D.S..
How much does GREGORY DELGADO, D.D.S. prescribe under Medicare Part D?
In 2023, GREGORY DELGADO, D.D.S. wrote 249 Medicare Part D claims totaling $1K in drug costs for 97 beneficiaries.
Where is GREGORY DELGADO, D.D.S. located?
GREGORY DELGADO, D.D.S. is located at 10115 SW NIMBUS AVE, TIGARD, OR, 97223. Phone: (503) 684-7868.
What is GREGORY DELGADO, D.D.S.'s NPI number?
GREGORY DELGADO, D.D.S.'s National Provider Identifier (NPI) is 1538281068, issued on 04/04/2007.
Does GREGORY DELGADO, D.D.S. prescribe opioids?
Yes, GREGORY DELGADO, D.D.S. had 66 opioid claims in 2023 with an opioid prescribing rate of 26.5%.
How many Oral and Maxillofacial Surgery (Dentist) providers are there in the US?
There are 7,631 Oral and Maxillofacial Surgery (Dentist) providers across 52 states in the US. The average Oral and Maxillofacial Surgery (Dentist) provider writes 378 Medicare Part D claims per year.
What drugs does GREGORY DELGADO, D.D.S. prescribe most often?
Based on 2023 Medicare Part D data, GREGORY DELGADO, D.D.S.'s most frequently prescribed drugs include Chlorhexidine Gluconate, Lidocaine Hcl Viscous, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY DELGADO, D.D.S. accept Medicare?
GREGORY DELGADO, D.D.S. appears in CMS Medicare data with 249 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY DELGADO, D.D.S.'s credentials?
GREGORY DELGADO, D.D.S.'s NPI is 1538281068 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