NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1730393836 MD
Verify on CMS → Arun Manoharan, MD
Hospitalist Physician in Modesto, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,938 in Hospitalist 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
116
Medicare Part D claims · 51 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.3/100
▼ 1 pts below national avg 83.1 · Above neutral
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
Arun Manoharan, MD reported a CMS MIPS final score of 82.3/100 - below the 83.1 national average - and filed 116 Medicare Part D claims in 2023.
- 82.3/100
- MIPS score · -1 vs avg
- 116
- Part D claims, 2023
- 89%
- 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.
Arun Manoharan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
82 39th percentile higher than 39% 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 Arun Manoharan, MD sits
This provider among hospitalist physician peers
Across the 4,437 hospitalist physician providers who report both Medicare Part D prescribing and a MIPS quality score, Arun Manoharan, MD writes more Part D claims than 25% of them and scores higher on MIPS quality than 35% - placing this provider in the lower-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 hospitalist physician peer from a representative sample of 60; the gold marker is Arun Manoharan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Arun Manoharan, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Arun Manoharan, MD?
Near national averagePrimary specialty
Hospitalist Physician
Medicare Part D claims
116 87% vs specialty avg
MIPS final score
82.3/100 0.8 pts vs avg
Specialty distribution in California
How Hospitalist Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Arun Manoharan, MD's 2023 MIPS final score plotted against the Hospitalist Physician national average
- MIPS Final Score
- 82.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hospitalist Physician) - 82.3/100 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).
Arun Manoharan, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 1441 FLORIDA AVE, Modesto, CA, 95350, with a listed phone of (209) 576-3525. NPI 1730393836 was issued on 05/09/2007.
Medicare Part D records for calendar year 2023 show 116 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $7K in drug spend, split 11% brand-name and 89% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.3/100 for the 2023 performance year (Quality 88.3, Cost 19.3), compared with the national average of 83.1.
Hospitalist Physician is a mid-sized specialty nationwide, with 16,938 enrolled providers across 54 states and an average of 888 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 | 1730393836 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/09/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
82.2795
Final Score
Avg: 83.1
88.3333
Quality
19.265
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Arun Manoharan, MD 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.
Altea Medical California PC
Oakland, CA
Hospitalists OF Modesto Medical Group Inc
Modesto, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Arun Manoharan, MD. To verify Arun Manoharan, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Arun Manoharan, MD - brand share 11.0%
Hospitalist Physician average
11% brand-name claims vs 89% generic, on 116 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.
116
Total Claims
$7K
Total Drug Cost
51
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 123
- Total Day Supply
- 2,824
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 19
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 2.62
- Gender Split
- 53% female / 47% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Furosemide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Arun Manoharan, MD fits within the Hospitalist Physician landscape nationally.
16,938
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider
Arun Manoharan, MD's 116 claims are below the specialty average of 888.
Nearby Hospitalist Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Manoharan.
Dr. Zina Abbas
M.D.
Chula Vista, CA
Dr. Mehrdad Abbasi
MD
Rancho Mirage, CA
Dr. Abdul Abdali
M.D.
French Camp, CA
Dr. Anwar Abdelhadi
M.D.
Orange, CA
Dr. Farid Abdelmalak
M.D.
Santa Monica, CA
Compare Hospitalist 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist 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 Arun Manoharan, MD's specialty? ▼
Arun Manoharan, MD specializes in Hospitalist Physician and practices in Modesto, California. Credentials: MD.
How much does Arun Manoharan, MD prescribe under Medicare Part D? ▼
In 2023, Arun Manoharan, MD wrote 116 Medicare Part D claims totaling $7K in drug costs for 51 beneficiaries.
What is Arun Manoharan, MD's Medicare quality score? ▼
Arun Manoharan, MD has a CMS MIPS Final Score of 82.3/100 (Quality: 88.3, Cost: 19.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Arun Manoharan, MD located? ▼
Arun Manoharan, MD is located at 1441 FLORIDA AVE, Modesto, CA, 95350. Phone: (209) 576-3525.
What is Arun Manoharan, MD's NPI number? ▼
Arun Manoharan, MD's National Provider Identifier (NPI) is 1730393836, issued on 05/09/2007.
Does Arun Manoharan, MD prescribe more brand-name or generic drugs? ▼
Arun Manoharan, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $4K in brand drug costs.
How many Hospitalist Physician providers are there in the US? ▼
There are 16,938 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Arun Manoharan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Arun Manoharan, MD's most frequently prescribed drugs include Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arun Manoharan, MD accept Medicare? ▼
Arun Manoharan, MD appears in CMS Medicare data with 116 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arun Manoharan, MD's credentials? ▼
Arun Manoharan, MD's NPI is 1730393836 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
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.