NPI registry status
Active
2026 NPPES data Oral and Maxillofacial Surgery (Dentist) NPI 1972618346 D.D.S.
Verify on CMS → John Holland, D.D.S.
Oral and Maxillofacial Surgery (Dentist) in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,631 in Oral and Maxillofacial Surgery (Dentist), and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
303
Medicare Part D claims · 134 beneficiaries · Oral and Maxillofacial Surgery (Dentist) avg: 378
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Holland, D.D.S. filed 303 Medicare Part D claims in 2023 as a Oral and Maxillofacial Surgery (Dentist) in Portland, Oregon.
- 303
- 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.
John Holland, D.D.S.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
303 Top 43% higher than 57% of 1,370,886 prescribers
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 John Holland, D.D.S.?
Quality data not reportedPrimary specialty
Oral and Maxillofacial Surgery (Dentist)
Medicare Part D claims
303 20% vs specialty avg
Specialty distribution in Oregon
How Oral and Maxillofacial Surgery (Dentist) compares to other specialties among Oregon providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Oral and Maxillofacial Surgery (Dentist). Verify directly:
How MIPS and board certification work
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).
John Holland, D.D.S. appears in the CMS NPPES registry as a Oral and Maxillofacial Surgery (Dentist) provider holding D.D.S. credentials at 10102 NE GLISAN ST, Portland, OR, 97220, with a listed phone of (503) 257-5959. NPI 1972618346 was issued on 08/19/2006.
Medicare Part D records for calendar year 2023 show 303 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 33.3%.
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
Provider Details
| NPI | 1972618346 |
|---|---|
| Specialty | Oral and Maxillofacial Surgery (Dentist) |
| Credentials | D.D.S. |
| Gender | Male |
| NPI Issued | 08/19/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
303
Total Claims
$3K
Total Drug Cost
134
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 310
- Total Day Supply
- 1,754
- Generic Drug Cost
- $3K
- Opioid Claims
- 101 (33.3% rate)
- Antibiotic Claims
- 124
Patient Demographics
- Average Patient Age
- 73.3 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Holland, D.D.S. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin
Amoxicillin
80 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
39 claims
- Ondansetron Odt
Ondansetron Odt
39 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
36 claims
- Oxycodone Hcl 22
Oxycodone Hcl
22 claims
- Lorazepam 19
Lorazepam
19 claims
- Azithromycin 18
Azithromycin
18 claims
- Clindamycin Hcl 17
Clindamycin Hcl
17 claims
| Drug | Claims |
|---|---|
| Amoxicillin | 80 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 39 |
| Ondansetron Odt Ondansetron | 39 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 36 |
| Oxycodone Hcl | 22 |
| Lorazepam | 19 |
| Azithromycin | 18 |
| Clindamycin Hcl | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Oral and Maxillofacial Surgery (Dentist) in OR →
All providers in Oregon →
Compare specialties →
Oral and Maxillofacial Surgery (Dentist) Overview
How John Holland, 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
John Holland, D.D.S.'s 303 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 Holland.
Dr. Brian Allender
D.M.D.
Eugene, OR
Dr. Syed Asghar
MD, DMD, BDS
Lake Oswego, OR
Dr. Steven Beadnell
D.M.D.
Portland, OR
Dr. Richard Bell
MD, DDS
Portland, OR
Dr. Anthony Bouneff
D.M.D.
Beaverton, OR
Compare Oral and Maxillofacial Surgery (Dentist) nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oral and Maxillofacial Surgery (Dentist) peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is John Holland, D.D.S.'s specialty? ▼
John Holland, D.D.S. specializes in Oral and Maxillofacial Surgery (Dentist) and practices in Portland, Oregon. Credentials: D.D.S..
How much does John Holland, D.D.S. prescribe under Medicare Part D? ▼
In 2023, John Holland, D.D.S. wrote 303 Medicare Part D claims totaling $3K in drug costs for 134 beneficiaries.
Where is John Holland, D.D.S. located? ▼
John Holland, D.D.S. is located at 10102 NE GLISAN ST, Portland, OR, 97220. Phone: (503) 257-5959.
What is John Holland, D.D.S.'s NPI number? ▼
John Holland, D.D.S.'s National Provider Identifier (NPI) is 1972618346, issued on 08/19/2006.
Does John Holland, D.D.S. prescribe opioids? ▼
Yes, John Holland, D.D.S. had 101 opioid claims in 2023 with an opioid prescribing rate of 33.3%.
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 John Holland, D.D.S. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Holland, D.D.S.'s most frequently prescribed drugs include Amoxicillin, Hydrocodone-Acetaminophen, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Holland, D.D.S. accept Medicare? ▼
John Holland, D.D.S. appears in CMS Medicare data with 303 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Holland, D.D.S.'s credentials? ▼
John Holland, D.D.S.'s NPI is 1972618346 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.