NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1063890838 MD
Verify on CMS → Arjun Muthusubramanian, MD
Family Medicine Physician in North Chesterfield, 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 150,125 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
135
Medicare Part D claims · 30 beneficiaries · Family Medicine Physician avg: 4K
What the federal data shows
Arjun Muthusubramanian, MD filed 135 Medicare Part D claims in 2024 as a Family Medicine Physician in North Chesterfield, Virginia.
- 135
- Part D claims, 2024
- ≥34th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Arjun Muthusubramanian, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1063890838), first enumerated 05/13/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 135 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1063890838 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1063890838
- ENUM-MID 2015
- TAX-MEGA 150K Family Medicine
- RX-LIGHT 135
- BOOK-LIGHT 4,030 in Virginia
- PHOTO-ENUM Melissa Trevelline · 2015
Arjun Muthusubramanian, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
135 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Arjun Muthusubramanian, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Arjun Muthusubramanian, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
135 96% vs specialty avg
Specialty distribution in Virginia
How Family Medicine Physician compares to other specialties among Virginia 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 Family Medicine Physician. Verify directly:
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 | 1063890838 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/13/2015 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
135
Total Claims
$7K
Total Drug Cost
30
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 147.367
- Total Day Supply
- 3,351
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 67.2 years
- Avg HCC Risk Score
- 5.08
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
* 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 Arjun Muthusubramanian, MD fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Arjun Muthusubramanian, MD's 135 claims are below the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Muthusubramanian, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
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 Muthusubramanian.
One of 4,030 Family Medicine Physician providers enrolled in Virginia, 5 are shown here.
Dr. Usman Aamir
MD
Staunton, VA
Dr. Maureen Aaron
M.D.
Martinsville, VA
Dr. Marianne Abadam
DO
Hampton, VA
Dr. Tasnim Abbasi
MD
Danville, VA
Dr. Linda Abbey
M.D.
Richmond, VA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Arjun Muthusubramanian, MD's specialty? ▼
Arjun Muthusubramanian, MD specializes in Family Medicine Physician and practices in North Chesterfield, Virginia. Credentials: MD.
How much does Arjun Muthusubramanian, MD prescribe under Medicare Part D? ▼
In 2024, Arjun Muthusubramanian, MD wrote 135 Medicare Part D claims totaling $7K in drug costs for 30 beneficiaries.
Where is Arjun Muthusubramanian, MD located? ▼
Arjun Muthusubramanian, MD is located at 1121 MALL DR UNIT 73206, North Chesterfield, VA, 23235. Phone: (952) 251-0231.
What is Arjun Muthusubramanian, MD's NPI number? ▼
Arjun Muthusubramanian, MD's National Provider Identifier (NPI) is 1063890838, issued on 05/13/2015.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Arjun Muthusubramanian, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Arjun Muthusubramanian, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arjun Muthusubramanian, MD accept Medicare? ▼
Arjun Muthusubramanian, MD appears in CMS Medicare data with 135 Part D claims and 30 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arjun Muthusubramanian, MD's credentials? ▼
Arjun Muthusubramanian, MD's NPI is 1063890838 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.