2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1649890179 M.D.
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Chanwoo Nam, M.D.

Student in an Organized Health Care Education/Training Program in Buffalo, New York. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 331,761 in Student in an Organized Health Care Education/Training Program, 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
576
Medicare Part D claims · 89 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
74%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Chanwoo Nam, M.D. filed 576 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in Buffalo, New York, prescribing 74% generic.

576
Part D claims, 2023
74%
generic prescribing

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.

Chanwoo Nam, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

576 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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. 2K+: 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 Chanwoo Nam, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/24/2020

NPI 1649890179

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

576 25% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in New York

How Student in an Organized Health Care Education/Training Program compares to other specialties among New York providers

New York providers
Student in an Organized Health Care Education/Training Program - 7.8%Student in an Organized Health Care Education/Training Program7.8%Registered Nurse - 5.2%Registered Nurse5.2%Clinical Social Worker - 4.9%Clinical Social Worker4.9%Social Worker - 4.5%Social Worker4.5%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse - 4.3%Licensed Practical Nurse4.3%
Largest specialties in New York (% of in-state 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 Student in an Organized Health Care Education/Training Program. Verify directly:

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).

Chanwoo Nam, M.D. appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding M.D. credentials at 462 GRIDER STREET, Buffalo, NY, 14215, with a listed phone of (607) 247-2200. NPI 1649890179 was issued on 04/24/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Nam 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 576 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $116K in drug spend, split 23% brand-name and 74% generic by claim count. 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.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 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

462 GRIDER STREET
Buffalo, NY 14215

Provider Details

NPI 1649890179
Specialty Student in an Organized Health Care Education/Training Program
Credentials M.D.
Gender Male
NPI Issued 04/24/2020

Hospital and facility affiliations

Facilities where Chanwoo Nam, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

St James Hospital
★★★☆☆ 3/5
Hornell, NY
Acute Care Hospitals
CMS CCN: 330151
Strong Renal Group
Rochester, NY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Chanwoo Nam, M.D.. To verify Chanwoo Nam, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Chanwoo Nam, M.D. - brand share 23.0%
Student in an Organized Health Care Education/Training Program average

23% brand-name claims vs 74% generic, on 576 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

576
Total Claims
$116K
Total Drug Cost
89
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,112
Total Day Supply
32,505
Brand vs Generic
23% brand / 74% generic
Brand Drug Cost
$101K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
65.3 years
Avg HCC Risk Score
1.57
Gender Split
54% female / 46% male
Age Distribution
<65: 37, 65-74: 34, 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.

What Chanwoo Nam, M.D. 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
Atorvastatin Calcium
44
Amlodipine Besylate
42
Hydrochlorothiazide
25
Lisinopril
24
Albuterol Sulfate Hfa
Albuterol Sulfate
22
Omeprazole
19
Simvastatin
19
Lisinopril-Hydrochlorothiazide
Lisinopril/Hydrochlorothiazide
18
Metformin Hcl
18
Eliquis
Apixaban
16

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

Student in an Organized Health Care Education/Training Program Overview

How Chanwoo Nam, M.D. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

Chanwoo Nam, M.D.'s 576 claims are above the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Nam.

Compare Student in an Organized Health Care Education/Training Program 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 New York medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Student in an Organized Health Care Education/Training Program 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.

Frequently Asked Questions

What is Chanwoo Nam, M.D.'s specialty?
Chanwoo Nam, M.D. specializes in Student in an Organized Health Care Education/Training Program and practices in Buffalo, New York. Credentials: M.D..
How much does Chanwoo Nam, M.D. prescribe under Medicare Part D?
In 2023, Chanwoo Nam, M.D. wrote 576 Medicare Part D claims totaling $116K in drug costs for 89 beneficiaries.
Where is Chanwoo Nam, M.D. located?
Chanwoo Nam, M.D. is located at 462 GRIDER STREET, Buffalo, NY, 14215. Phone: (607) 247-2200.
What is Chanwoo Nam, M.D.'s NPI number?
Chanwoo Nam, M.D.'s National Provider Identifier (NPI) is 1649890179, issued on 04/24/2020.
Does Chanwoo Nam, M.D. prescribe more brand-name or generic drugs?
Chanwoo Nam, M.D.'s prescribing is 23% brand-name and 74% generic drugs by claim count, with $101K in brand drug costs.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does Chanwoo Nam, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Chanwoo Nam, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chanwoo Nam, M.D. accept Medicare?
Chanwoo Nam, M.D. appears in CMS Medicare data with 576 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chanwoo Nam, M.D.'s credentials?
Chanwoo Nam, M.D.'s NPI is 1649890179 with credentials M.D.. 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

Compiled from official public sources by the PlainDoctor editorial team.