NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1700954252 M.D.
Verify on CMS → Anup Manoharan, M.D.
Nephrology Physician in Fairfax, 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 10,569 in Nephrology 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
645
Medicare Part D claims · 112 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Anup Manoharan, M.D. filed 645 Medicare Part D claims in 2023 as a Nephrology Physician in Fairfax, Virginia, prescribing 90% generic.
- 645
- Part D claims, 2023
- 90%
- 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.
Anup Manoharan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
645 Top 31% higher than 69% of 1,370,886 prescribers
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
✓
Board certification likely (heuristic, not verified)
Anup Manoharan, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Anup Manoharan, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
645 56% vs specialty avg
Specialty distribution in Virginia
How Nephrology 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 Nephrology 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).
Anup Manoharan, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 8316 ARLINGTON BLVD, Fairfax, VA, 22031, with a listed phone of (703) 560-1313. NPI 1700954252 was issued on 12/01/2006.
Medicare Part D records for calendar year 2023 show 645 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $170K in drug spend, split 10% brand-name and 90% generic by claim count.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1700954252 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 12/01/2006 |
Hospital and facility affiliations
Facilities where Anup Manoharan, 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.
Washington Nephrology Associates LLP
Woodbridge, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Anup Manoharan, M.D. - brand share 10.0%
Nephrology Physician average
10% brand-name claims vs 90% generic, on 645 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.
645
Total Claims
$170K
Total Drug Cost
112
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,578
- Total Day Supply
- 46,915
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $128K
- Generic Drug Cost
- $42K
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 4.06
- Gender Split
- 38% female / 63% male
- Age Distribution
- <65: 22, 65-74: 39, 75-84: 35, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Anup Manoharan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
102 claims
- Hydralazine Hcl
Hydralazine Hcl
41 claims
- Furosemide 40
Furosemide
40 claims
- Tamsulosin Hcl 31
Tamsulosin Hcl
31 claims
- Sevelamer Carbonate 27
Sevelamer Carbonate
27 claims
- Metoprolol Succinate 26
Metoprolol Succinate
26 claims
- Velphoro 26
Velphoro
26 claims
- Allopurinol 20
Allopurinol
20 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 102 |
| Hydralazine Hcl | 41 |
| Furosemide | 40 |
| Tamsulosin Hcl | 31 |
| Sevelamer Carbonate | 27 |
| Metoprolol Succinate | 26 |
| Velphoro Sucroferric Oxyhydroxide | 26 |
| Allopurinol | 20 |
| Carvedilol | 20 |
| Pantoprazole Sodium | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Anup Manoharan, M.D. fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Anup Manoharan, M.D.'s 645 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Manoharan.
Dr. Mark Aarons
M.D.
Arlington, VA
Emaad Abdel-Rahman
Charlottesville, VA
Dr. Walid Abou Assi
M.D.
Richmond, VA
Dr. Christopher Acker
M.D.
Richmond, VA
Dr. Oscar Adler
M.D., PHD
Leesburg, VA
Compare Nephrology 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 Nephrology 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 Anup Manoharan, M.D.'s specialty? ▼
Anup Manoharan, M.D. specializes in Nephrology Physician and practices in Fairfax, Virginia. Credentials: M.D..
How much does Anup Manoharan, M.D. prescribe under Medicare Part D? ▼
In 2023, Anup Manoharan, M.D. wrote 645 Medicare Part D claims totaling $170K in drug costs for 112 beneficiaries.
Where is Anup Manoharan, M.D. located? ▼
Anup Manoharan, M.D. is located at 8316 ARLINGTON BLVD, Fairfax, VA, 22031. Phone: (703) 560-1313.
What is Anup Manoharan, M.D.'s NPI number? ▼
Anup Manoharan, M.D.'s National Provider Identifier (NPI) is 1700954252, issued on 12/01/2006.
Does Anup Manoharan, M.D. prescribe more brand-name or generic drugs? ▼
Anup Manoharan, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $128K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Anup Manoharan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Anup Manoharan, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Hydralazine Hcl, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Anup Manoharan, M.D. accept Medicare? ▼
Anup Manoharan, M.D. appears in CMS Medicare data with 645 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Anup Manoharan, M.D.'s credentials? ▼
Anup Manoharan, M.D.'s NPI is 1700954252 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
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.
- 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.
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.