2026 NPPES data Cardiovascular Disease Physician NPI 1568699932 M.D.
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Arjun Chagarlamudi, M.D.

Cardiovascular Disease Physician in Portland, Oregon. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,795 in Cardiovascular Disease 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 · 394 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$600.49
21 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Arjun Chagarlamudi, M.D. filed 1,519 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Portland, Oregon, prescribing 84% generic.

2K
Part D claims, 2023
84%
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.

Arjun Chagarlamudi, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,519 Top 19% higher than 81% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 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)

Arjun Chagarlamudi, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 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 Arjun Chagarlamudi, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/12/2009

NPI 1568699932

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

1,519 50% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Oregon

How Cardiovascular Disease Physician compares to other specialties among Oregon providers

Oregon providers
Mental Health Counselor - 12.1%Mental Health Counselor12.1%Massage Therapist - 4.8%Massage Therapist4.8%Counselor - 3.9%Counselor3.9%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Case Manager/Care Coordinator - 3.4%Case Manager/Care Coordinator3.4%Clinical Social Worker - 3.3%Clinical Social Worker3.3%Cardiovascular Disease Physician - 0.2%Cardiovascular Disease Physician0.2%
Largest specialties in Oregon (% of in-state 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 Cardiovascular Disease Physician. Verify directly:

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).

Arjun Chagarlamudi, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239, with a listed phone of (503) 494-8311. NPI 1568699932 was issued on 06/12/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chagarlamudi 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 1,519 prescription claims written by this provider, covering 394 Medicare beneficiaries and totaling roughly $275K in drug spend, split 16% brand-name and 84% 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.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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

3181 SW SAM JACKSON PARK RD
Portland, OR 97239

Provider Details

NPI 1568699932
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 06/12/2009

Hospital and facility affiliations

Facilities where Arjun Chagarlamudi, 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.

According to CMS billing records, Arjun Chagarlamudi, M.D. is affiliated with 3 Medicare-billing facilities.

Legacy Clinics LLC
Portland, OR
Tuality Medical Group LLC
Forest Grove, OR
University Professional Services
Portland, OR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Arjun Chagarlamudi, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$600

Largest payer

Boston Scientific Corporation

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

Arjun Chagarlamudi, M.D. - brand share 16.0%
Cardiovascular Disease Physician average

16% brand-name claims vs 84% generic, on 1,519 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.

1,519
Total Claims
$275K
Total Drug Cost
394
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,613
Total Day Supply
107,493
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$249K
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
75.1 years
Avg HCC Risk Score
1.55
Gender Split
47% female / 53% male
Age Distribution
<65: 27, 65-74: 166, 75-84: 145, 85+: 56

Top Prescribed Drugs (Medicare Part D)

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

What Arjun Chagarlamudi, M.D. 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
Metoprolol Succinate
167
Eliquis
Apixaban
164
Amlodipine Besylate
136
Atorvastatin Calcium
120
Carvedilol
92
Isosorbide Mononitrate Er
Isosorbide Mononitrate
91
Lisinopril
73
Furosemide
67
Losartan Potassium
64
Clopidogrel
Clopidogrel Bisulfate
59

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

Cardiovascular Disease Physician Overview

How Arjun Chagarlamudi, M.D. fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

Arjun Chagarlamudi, M.D.'s 1,519 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Chagarlamudi.

Compare Cardiovascular Disease 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 Oregon medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Cardiovascular Disease 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.

Frequently Asked Questions

What is Arjun Chagarlamudi, M.D.'s specialty?
Arjun Chagarlamudi, M.D. specializes in Cardiovascular Disease Physician and practices in Portland, Oregon. Credentials: M.D..
How much does Arjun Chagarlamudi, M.D. prescribe under Medicare Part D?
In 2023, Arjun Chagarlamudi, M.D. wrote 1,519 Medicare Part D claims totaling $275K in drug costs for 394 beneficiaries.
Where is Arjun Chagarlamudi, M.D. located?
Arjun Chagarlamudi, M.D. is located at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239. Phone: (503) 494-8311.
What is Arjun Chagarlamudi, M.D.'s NPI number?
Arjun Chagarlamudi, M.D.'s National Provider Identifier (NPI) is 1568699932, issued on 06/12/2009.
Does Arjun Chagarlamudi, M.D. prescribe more brand-name or generic drugs?
Arjun Chagarlamudi, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $249K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Arjun Chagarlamudi, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Arjun Chagarlamudi, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arjun Chagarlamudi, M.D. accept Medicare?
Arjun Chagarlamudi, M.D. appears in CMS Medicare data with 1,519 Part D claims and 394 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arjun Chagarlamudi, M.D.'s credentials?
Arjun Chagarlamudi, M.D.'s NPI is 1568699932 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

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.