2026 NPPES data Hospitalist Physician NPI 1417521345 MD, MPH
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KRISHAN SIVARAJ, MD, MPH

Hospitalist Physician in DURHAM, North Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
500
Medicare Part D claims · 72 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KRISHAN SIVARAJ, MD, MPH filed 500 Medicare Part D claims in 2023 as a Hospitalist Physician in DURHAM, North Carolina, prescribing 95% generic.

500
Part D claims, 2023
95%
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.

KRISHAN SIVARAJ, MD, MPH's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

500 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

KRISHAN SIVARAJ, MD, MPH 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 KRISHAN SIVARAJ, MD, MPH?

Quality data not reported

NPI registry status

Active

Issued 05/15/2021

NPI 1417521345

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

500 44% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in North Carolina

How Hospitalist Physician compares to other specialties among North Carolina providers

North Carolina providers

Hospitalist Physician share within North Carolina

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Hospitalist Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hospitalist Physician ABMS/AOA estimate

Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

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).

KRISHAN SIVARAJ, MD, MPH appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD, MPH credentials at 3643 N ROXBORO ST, DURHAM, NC, 27704, with a listed phone of (919) 684-0280. NPI 1417521345 was issued on 05/15/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIVARAJ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 500 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $33K in drug spend, split 5% brand-name and 95% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 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

3643 N ROXBORO ST
DURHAM, NC 27704

Provider Details

NPI 1417521345
Specialty Hospitalist Physician
Credentials MD, MPH
Gender Male
NPI Issued 05/15/2021

Hospital and facility affiliations

Facilities where KRISHAN SIVARAJ, MD, MPH 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.

DUKE UNIVERSITY HEALTH SYSTEM, INC
DURHAM, NC

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 · Generic-heavy

KRISHAN SIVARAJ, MD, MPH — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 500 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.

500
Total Claims
$33K
Total Drug Cost
72
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
948
Total Day Supply
26,951
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$17K
Generic Drug Cost
$17K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
2.24
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What KRISHAN SIVARAJ, MD, MPH prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amlodipine Besylate
34
Atorvastatin Calcium
32
Albuterol Sulfate Hfa
Albuterol Sulfate
27
Buspirone Hcl
21
Diclofenac Sodium
18
Celecoxib
13
Fluoxetine Hcl
13
Lisinopril
13
Metoprolol Succinate
13
Oxcarbazepine
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hospitalist Physician Overview

How KRISHAN SIVARAJ, MD, MPH fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

KRISHAN SIVARAJ, MD, MPH's 500 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as SIVARAJ.

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KRISHAN SIVARAJ, MD, MPH's specialty?
KRISHAN SIVARAJ, MD, MPH specializes in Hospitalist Physician and practices in DURHAM, North Carolina. Credentials: MD, MPH.
How much does KRISHAN SIVARAJ, MD, MPH prescribe under Medicare Part D?
In 2023, KRISHAN SIVARAJ, MD, MPH wrote 500 Medicare Part D claims totaling $33K in drug costs for 72 beneficiaries.
Where is KRISHAN SIVARAJ, MD, MPH located?
KRISHAN SIVARAJ, MD, MPH is located at 3643 N ROXBORO ST, DURHAM, NC, 27704. Phone: (919) 684-0280.
What is KRISHAN SIVARAJ, MD, MPH's NPI number?
KRISHAN SIVARAJ, MD, MPH's National Provider Identifier (NPI) is 1417521345, issued on 05/15/2021.
Does KRISHAN SIVARAJ, MD, MPH prescribe more brand-name or generic drugs?
KRISHAN SIVARAJ, MD, MPH's prescribing is 5% brand-name and 95% generic drugs by claim count, with $17K in brand drug costs.
How many Hospitalist Physician providers are there in the US?
There are 16,825 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 KRISHAN SIVARAJ, MD, MPH prescribe most often?
Based on 2023 Medicare Part D data, KRISHAN SIVARAJ, MD, MPH's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISHAN SIVARAJ, MD, MPH accept Medicare?
KRISHAN SIVARAJ, MD, MPH appears in CMS Medicare data with 500 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISHAN SIVARAJ, MD, MPH's credentials?
KRISHAN SIVARAJ, MD, MPH's NPI is 1417521345 with credentials MD, MPH. 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

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