NPI registry status
Active
2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1265439343 MD
Verify on CMS → Phuong Mai, MD
Physical Medicine & Rehabilitation Physician in Springfield, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,336 in Physical Medicine & Rehabilitation 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
443
Medicare Part D claims · 141 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
36.4/100
▼ 47 pts below national avg 83.1 · Below average
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Phuong Mai, MD reported a CMS MIPS final score of 36.4/100 - below the 83.1 national average - and filed 443 Medicare Part D claims in 2023.
- 36.4/100
- MIPS score · -47 vs avg
- 443
- Part D claims, 2023
- 91%
- 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.
Phuong Mai, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
36 3rd percentile higher than 3% of 477,587 scored providers
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 Phuong Mai, MD sits
This provider among physical medicine & rehabilitation physician peers
Across the 2,781 physical medicine & rehabilitation physician providers who report both Medicare Part D prescribing and a MIPS quality score, Phuong Mai, MD writes more Part D claims than 55% of them and scores higher on MIPS quality than 7% - 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
Each dot is one physical medicine & rehabilitation physician peer from a representative sample of 60; the gold marker is Phuong Mai, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Phuong Mai, 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 Phuong Mai, MD?
Below national averagePrimary specialty
Physical Medicine & Rehabilitation Physician
Medicare Part D claims
443 43% vs specialty avg
MIPS final score
36.4/100 46.7 pts vs avg
Specialty distribution in Virginia
How Physical Medicine & Rehabilitation Physician compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Phuong Mai, MD's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average
- MIPS Final Score
- 36.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Physical Medicine & Rehabilitation Physician) - 36.4/100 vs national avg 83.1
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).
Phuong Mai, MD appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding MD credentials at 6620 KEENE DR, Springfield, VA, 22152, with a listed phone of (703) 598-5910. NPI 1265439343 was issued on 07/05/2005.
Medicare Part D records for calendar year 2023 show 443 prescription claims written by this provider, covering 141 Medicare beneficiaries and totaling roughly $23K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 16.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 36.4/100 for the 2023 performance year (Quality 49.3, Cost 39), compared with the national average of 83.1.
Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,336 enrolled providers across 54 states and an average of 781 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 | 1265439343 |
|---|---|
| Specialty | Physical Medicine & Rehabilitation Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/05/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
36.3936
Final Score
Avg: 83.1
49.2615
Quality
38.9632
Cost
Reporting: Individual
Brand vs generic prescribing mix · Generic-heavy
Phuong Mai, MD - brand share 9.0%
Physical Medicine & Rehabilitation Physician average
9% brand-name claims vs 91% generic, on 443 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.
443
Total Claims
$23K
Total Drug Cost
141
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 456
- Total Day Supply
- 11,007
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $16K
- Generic Drug Cost
- $7K
- Opioid Claims
- 73 (16.5% rate)
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 2.54
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 15, 65-74: 47, 75-84: 59, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Phuong Mai, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
32 claims
- Oxycodone Hcl
Oxycodone Hcl
30 claims
- Tramadol Hcl
Tramadol Hcl
24 claims
- Atorvastatin Calcium
Atorvastatin Calcium
22 claims
- Tamsulosin Hcl
Tamsulosin Hcl
17 claims
- Tizanidine Hcl 12
Tizanidine Hcl
12 claims
- Furosemide 11
Furosemide
11 claims
| Drug | Claims |
|---|---|
| Gabapentin | 32 |
| Oxycodone Hcl | 30 |
| Tramadol Hcl | 24 |
| Atorvastatin Calcium | 22 |
| Tamsulosin Hcl | 17 |
| Tizanidine Hcl | 12 |
| Furosemide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Physical Medicine & Rehabilitation Physician in VA →
All providers in Virginia →
Compare specialties →
Physical Medicine & Rehabilitation Physician Overview
How Phuong Mai, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.
15,336
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider
Phuong Mai, MD's 443 claims are below the specialty average of 781.
Nearby Physical Medicine & Rehabilitation Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Mai.
Dr. Jessalynn Adam
MD
Alexandria, VA
Dr. David Alcantara
M.D.
Portsmouth, VA
Dr. Jaison Alderman
PT, DPT
Great Falls, VA
Dr. Susan Alexander
PT
Harrisonburg, VA
Alan Alfano
Charlottesville, VA
Compare Physical Medicine & Rehabilitation 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 Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physical Medicine & Rehabilitation 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.
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Frequently Asked Questions
What is Phuong Mai, MD's specialty? ▼
Phuong Mai, MD specializes in Physical Medicine & Rehabilitation Physician and practices in Springfield, Virginia. Credentials: MD.
How much does Phuong Mai, MD prescribe under Medicare Part D? ▼
In 2023, Phuong Mai, MD wrote 443 Medicare Part D claims totaling $23K in drug costs for 141 beneficiaries.
What is Phuong Mai, MD's Medicare quality score? ▼
Phuong Mai, MD has a CMS MIPS Final Score of 36.4/100 (Quality: 49.3, Cost: 39). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Phuong Mai, MD located? ▼
Phuong Mai, MD is located at 6620 KEENE DR, Springfield, VA, 22152. Phone: (703) 598-5910.
What is Phuong Mai, MD's NPI number? ▼
Phuong Mai, MD's National Provider Identifier (NPI) is 1265439343, issued on 07/05/2005.
Does Phuong Mai, MD prescribe more brand-name or generic drugs? ▼
Phuong Mai, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $16K in brand drug costs.
Does Phuong Mai, MD prescribe opioids? ▼
Yes, Phuong Mai, MD had 73 opioid claims in 2023 with an opioid prescribing rate of 16.5%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,336 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does Phuong Mai, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Phuong Mai, MD's most frequently prescribed drugs include Gabapentin, Oxycodone Hcl, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Phuong Mai, MD accept Medicare? ▼
Phuong Mai, MD appears in CMS Medicare data with 443 Part D claims and 141 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Phuong Mai, MD's credentials? ▼
Phuong Mai, MD's NPI is 1265439343 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
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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.