2026 NPPES data Periodontics NPI 1871775403 DDS, MS
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CHUN-HAN CHOU, DDS, MS

Periodontics in MEDFORD, 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
215
Medicare Part D claims · 131 beneficiaries · Periodontics avg: 264
What the federal data reveals: CHUN-HAN CHOU, DDS, MS is a Periodontics ([object Object]) practicing in MEDFORD, Oregon with a Medicare Part D prescribing footprint of 215 claims across 131 beneficiaries .

What stands out: CHUN-HAN CHOU, DDS, MS filed 215 Medicare Part D claims in 2023 across MEDFORD, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CHUN-HAN CHOU, DDS, MS at a glance

Quality data not reported

NPI registry status

Active

Issued 12/05/2007

NPI 1871775403

Primary specialty

Periodontics

Mid-sized

6,061 US NPIs in this specialty

Medicare Part D claims

215 19% vs specialty avg

2023 prescription claims

Specialty avg: 264

Specialty distribution in Oregon

How Periodontics compares to other specialties among Oregon providers

Oregon providers

Periodontics share within Oregon

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

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).

CHUN-HAN CHOU, DDS, MS is a Periodontics provider practicing in MEDFORD, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DDS, MS. NPI: 1871775403. 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.

CHUN-HAN CHOU, DDS, MS appears in the CMS NPPES registry as a Periodontics provider holding DDS, MS credentials at 1200 MIRA MAR AVE APT 1027, MEDFORD, OR, 97504, with a listed phone of (541) 227-3764. NPI 1871775403 was issued on 12/05/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHOU 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 215 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $983 in drug spend, with an opioid prescribing rate of 12.6%. 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

1200 MIRA MAR AVE APT 1027
MEDFORD, OR 97504

Provider Details

NPI 1871775403
Specialty Periodontics
Credentials DDS, MS
Gender Male
NPI Issued 12/05/2007

Medicare Part D Prescribing Data

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

215
Total Claims
$983
Total Drug Cost
131
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
215
Total Day Supply
937
Generic Drug Cost
$965
Opioid Claims
27 (12.6% rate)
Antibiotic Claims
170

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
0.63
Gender Split
51% female / 49% 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
Azithromycin
59
Doxycycline Monohydrate
52
Metronidazole
21
Amoxicillin
16
Tramadol Hcl
14
Acetaminophen-Codeine
Acetaminophen With Codeine
11

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

Periodontics Overview

How CHUN-HAN CHOU, DDS, MS fits within the Periodontics landscape nationally.

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

CHUN-HAN CHOU, DDS, MS's 215 claims are below the specialty average of 264.

Nearby Periodontics Providers in Oregon

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

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

Frequently Asked Questions

What is CHUN-HAN CHOU, DDS, MS's specialty?
CHUN-HAN CHOU, DDS, MS specializes in Periodontics and practices in MEDFORD, Oregon. Credentials: DDS, MS.
How much does CHUN-HAN CHOU, DDS, MS prescribe under Medicare Part D?
In 2023, CHUN-HAN CHOU, DDS, MS wrote 215 Medicare Part D claims totaling $983 in drug costs for 131 beneficiaries.
Where is CHUN-HAN CHOU, DDS, MS located?
CHUN-HAN CHOU, DDS, MS is located at 1200 MIRA MAR AVE APT 1027, MEDFORD, OR, 97504. Phone: (541) 227-3764.
What is CHUN-HAN CHOU, DDS, MS's NPI number?
CHUN-HAN CHOU, DDS, MS's National Provider Identifier (NPI) is 1871775403, issued on 12/05/2007.
Does CHUN-HAN CHOU, DDS, MS prescribe opioids?
Yes, CHUN-HAN CHOU, DDS, MS had 27 opioid claims in 2023 with an opioid prescribing rate of 12.6%.
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 CHUN-HAN CHOU, DDS, MS prescribe most often?
Based on 2023 Medicare Part D data, CHUN-HAN CHOU, DDS, MS's most frequently prescribed drugs include Azithromycin, Doxycycline Monohydrate, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHUN-HAN CHOU, DDS, MS accept Medicare?
CHUN-HAN CHOU, DDS, MS appears in CMS Medicare data with 215 Part D claims and 131 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHUN-HAN CHOU, DDS, MS's credentials?
CHUN-HAN CHOU, DDS, MS's NPI is 1871775403 with credentials DDS, MS. 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