NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1609864669 MD
Verify on CMS → Steven Ma, MD
Family Medicine Physician in Fredericksburg, 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 147,760 in Family 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
2K
Medicare Part D claims · 141 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
16.1/100
▼ 67 pts below national avg 83.5 · Penalty band
Industry payments
$1.5K
46 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Steven Ma, MD reported a CMS MIPS final score of 16.1/100 - below the 83.5 national average - and filed 2,203 Medicare Part D claims in 2023.
- 16.1/100
- MIPS score · -67 vs avg
- 2K
- Part D claims, 2023
- 88%
- 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.
CMS NPPES provider registry desk
NPI 1609864669 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1609864669
- ENUM-LEGACY 2005
- TAX-MEGA 148K Family Medicine
- MIPS-LOW 16.1/100
- RX-MID 2,203
- BOOK-LIGHT 3,957 in Virginia
- PHOTO-FINISH Simarjit Singh · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Ryan Allen · low…
Ryan Allen
16 MIPS pts
- Ma · this provider
Ma · this provider
16.1 MIPS pts
- Jamie Pietka · h…
Jamie Pietka
16.1 MIPS pts
- Simarjit Singh ·…
Simarjit Singh
16.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Steven Ma, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
16 ≥ 2nd percentile 2% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Steven Ma, MD sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Steven Ma, MD writes more Part D claims than 47% of them and scores higher on MIPS quality than 2% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Steven Ma, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Steven Ma, 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 Steven Ma, MD?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
2,203 36% vs specialty avg
MIPS final score
16.1/100 67.4 pts vs avg
Specialty distribution in Virginia
How Family Medicine Physician compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Steven Ma, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 16.1/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1609864669 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/12/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
16.1078
Final Score
Measured-score avg: 83.5
0
Quality
53.6928
Cost
Reporting: Individual
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Steven Ma, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
Amgen Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Steven Ma, MD - brand share 11.0%
Family Medicine Physician average
11% brand-name claims vs 88% generic, on 2,203 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.
2,203
Total Claims
$204K
Total Drug Cost
141
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,695
- Total Day Supply
- 133,050
- Brand vs Generic
- 11% brand / 88% generic
- Brand Drug Cost
- $150K
- Generic Drug Cost
- $54K
- Opioid Claims
- 49 (2.2% rate)
- Antibiotic Claims
- 79
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Steven Ma, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
123 claims
- Lisinopril
Lisinopril
106 claims
- Atorvastatin Calcium
Atorvastatin Calcium
93 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
80 claims
- Hydrochlorothiazide
Hydrochlorothiazide
70 claims
- Methylprednisolone
Methylprednisolone
64 claims
- Levothyroxine Sodium 46
Levothyroxine Sodium
46 claims
- Carvedilol 42
Carvedilol
42 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 123 |
| Lisinopril | 106 |
| Atorvastatin Calcium | 93 |
| Rosuvastatin Calcium | 80 |
| Hydrochlorothiazide | 70 |
| Methylprednisolone | 64 |
| Levothyroxine Sodium | 46 |
| Carvedilol | 42 |
| Telmisartan | 42 |
| Metformin Hcl | 41 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Steven Ma, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Steven Ma, MD's 2,203 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ma, both outside Virginia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (16.1 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Ma.
One of 3,957 Family Medicine Physician providers enrolled in Virginia, 5 are shown here.
Dr. Maureen Aaron
M.D.
Martinsville, VA
Dr. Marianne Abadam
DO
Hampton, VA
Dr. Linda Abbey
M.D.
Richmond, VA
Dr. David Abbot
MD
Vienna, VA
Dr. James Abbott
M.D.
Richmond, VA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Steven Ma, MD's specialty? ▼
Steven Ma, MD specializes in Family Medicine Physician and practices in Fredericksburg, Virginia. Credentials: MD.
How much does Steven Ma, MD prescribe under Medicare Part D? ▼
In 2023, Steven Ma, MD wrote 2,203 Medicare Part D claims totaling $204K in drug costs for 141 beneficiaries.
What is Steven Ma, MD's Medicare quality score? ▼
Steven Ma, MD has a CMS MIPS Final Score of 16.1/100 (Quality: 0, Cost: 53.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Steven Ma, MD located? ▼
Steven Ma, MD is located at 605 EMANCIPATION HWY STE 201, Fredericksburg, VA, 22401. Phone: (540) 368-2011.
What is Steven Ma, MD's NPI number? ▼
Steven Ma, MD's National Provider Identifier (NPI) is 1609864669, issued on 10/12/2005.
Does Steven Ma, MD prescribe more brand-name or generic drugs? ▼
Steven Ma, MD's prescribing is 11% brand-name and 88% generic drugs by claim count, with $150K in brand drug costs.
Does Steven Ma, MD prescribe opioids? ▼
Yes, Steven Ma, MD had 49 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Steven Ma, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Steven Ma, MD's most frequently prescribed drugs include Amlodipine Besylate, Lisinopril, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Steven Ma, MD accept Medicare? ▼
Steven Ma, MD appears in CMS Medicare data with 2,203 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 Steven Ma, MD's credentials? ▼
Steven Ma, MD's NPI is 1609864669 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.