2026 NPPES data Internal Medicine Physician NPI 1457414245 MD
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Bich Duong, MD

Internal Medicine Physician in Baltimore, Maryland. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal Medicine Physician, 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
5K
Medicare Part D claims · 211 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
18.2/100
▼ 65 pts below national avg 83.1 · Penalty band
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Bich Duong, MD reported a CMS MIPS final score of 18.2/100 - below the 83.1 national average - and filed 4,598 Medicare Part D claims in 2023.

18.2/100
MIPS score · -65 vs avg
5K
Part D claims, 2023
86%
generic prescribing
Likely
board-certified (heuristic)

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.

Bich Duong, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

18 2nd percentile higher than 2% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). This entry sits in this band. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Bich Duong, MD sits

This provider among internal medicine physician peers

Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Bich Duong, MD writes more Part D claims than 79% of them and scores higher on MIPS quality than 2% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 80Bich Duong, MD-Part D claim volume, percentile in specialty: 79 · MIPS quality, percentile: 2
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Bich Duong, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Bich Duong, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Bich Duong, MD?

Below national average

NPI registry status

Active

Issued 12/19/2006

NPI 1457414245

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,598 69% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

18.2/100 64.9 pts vs avg

Penalty band band

vs 83.1 national avg

Specialty distribution in Maryland

How Internal Medicine Physician compares to other specialties among Maryland providers

Maryland providers
Behavior Technician - 14.1%Behavior Technician14.1%Clinical Social Worker - 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide - 4.4%Home Health Aide4.4%Physical Therapist - 3.9%Physical Therapist3.9%Pharmacist - 3.6%Pharmacist3.6%Internal Medicine Physician - 2.8%Internal Medicine Physician2.8%
Largest specialties in Maryland (% of in-state providers)

Medicare quality performance, MIPS

Bich Duong, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
18.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) - 18.2/100 vs national avg 83.1

0%100%National avg83%18.2%
MIPS final score (Internal Medicine Physician) - 18.2/100 vs national avg 83.1

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).

Bich Duong, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 724 MAIDEN CHOICE LANE, Baltimore, MD, 21228, with a listed phone of (410) 869-3360. NPI 1457414245 was issued on 12/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Duong 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 4,598 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $358K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 3.0%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 18.2/100 for the 2023 performance year (Quality 0, Cost 60.5), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

724 MAIDEN CHOICE LANE
Baltimore, MD 21228

Provider Details

NPI 1457414245
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 12/19/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

18.1611
Final Score
Avg: 83.1
0
Quality
60.537
Cost

Reporting: Individual

Brand vs generic prescribing mix · Typical

Bich Duong, MD - brand share 13.0%
Internal Medicine Physician average

13% brand-name claims vs 86% generic, on 4,598 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.

4,598
Total Claims
$358K
Total Drug Cost
211
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,449
Total Day Supply
236,450
Brand vs Generic
13% brand / 86% generic
Brand Drug Cost
$273K
Generic Drug Cost
$83K
Opioid Claims
139 (3.0% rate)
Antibiotic Claims
78

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
0.92
Gender Split
53% female / 47% male
Age Distribution
<65: 27, 65-74: 111, 75-84: 51, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What Bich Duong, MD 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
Amlodipine Besylate
339
Atorvastatin Calcium
297
Lisinopril
218
Metoprolol Succinate
179
Losartan Potassium
172
Omeprazole
172
Levothyroxine Sodium
155
Metformin Hcl
134
Tamsulosin Hcl
126
Pantoprazole Sodium
114

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

Internal Medicine Physician Overview

How Bich Duong, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Bich Duong, MD's 4,598 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Maryland

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

Compare Internal Medicine Physician 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 Maryland medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician 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 Bich Duong, MD's specialty?
Bich Duong, MD specializes in Internal Medicine Physician and practices in Baltimore, Maryland. Credentials: MD.
How much does Bich Duong, MD prescribe under Medicare Part D?
In 2023, Bich Duong, MD wrote 4,598 Medicare Part D claims totaling $358K in drug costs for 211 beneficiaries.
What is Bich Duong, MD's Medicare quality score?
Bich Duong, MD has a CMS MIPS Final Score of 18.2/100 (Quality: 0, Cost: 60.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Bich Duong, MD located?
Bich Duong, MD is located at 724 MAIDEN CHOICE LANE, Baltimore, MD, 21228. Phone: (410) 869-3360.
What is Bich Duong, MD's NPI number?
Bich Duong, MD's National Provider Identifier (NPI) is 1457414245, issued on 12/19/2006.
Does Bich Duong, MD prescribe more brand-name or generic drugs?
Bich Duong, MD's prescribing is 13% brand-name and 86% generic drugs by claim count, with $273K in brand drug costs.
Does Bich Duong, MD prescribe opioids?
Yes, Bich Duong, MD had 139 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Bich Duong, MD prescribe most often?
Based on 2023 Medicare Part D data, Bich Duong, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bich Duong, MD accept Medicare?
Bich Duong, MD appears in CMS Medicare data with 4,598 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bich Duong, MD's credentials?
Bich Duong, MD's NPI is 1457414245 with credentials MD. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.