NPI registry status
Active
2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1124465745 M. D.
Verify on CMS → Amutha Rajagopal, M. D.
Addiction Medicine (Internal Medicine) 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 553 in Addiction Medicine (Internal 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
4K
Medicare Part D claims · 157 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Amutha Rajagopal, M. D. filed 4,099 Medicare Part D claims in 2023 as an Addiction Medicine (Internal Medicine) Physician in Portland, Oregon, prescribing 65% generic.
- 4K
- Part D claims, 2023
- 65%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥92nd
- 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 Amutha Rajagopal, M. D.
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 1124465745), first enumerated 05/23/2013.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,099 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
4 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1124465745 · Addiction Medicine (Internal Medicine) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1124465745
- ENUM-MID 2013
- TAX-NARROW 553
- RX-MID 4,099
- BOOK-THIN 12 in Oregon
- PHOTO-ENUM Anodika Fatehchand · 2013
Amutha Rajagopal, M. D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,099 ≥ 92nd percentile 92% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Amutha Rajagopal, M. D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 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 Amutha Rajagopal, M. D.?
Quality data not reportedPrimary specialty
Addiction Medicine (Internal Medicine) Physician
Medicare Part D claims
4,099 192% vs specialty avg
Specialty distribution in Oregon
How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Oregon 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 Addiction Medicine (Internal 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 | 1124465745 |
|---|---|
| Specialty | Addiction Medicine (Internal Medicine) Physician |
| Credentials | M. D. |
| Gender | Female |
| NPI Issued | 05/23/2013 |
Hospital and facility affiliations
Facilities where Amutha Rajagopal, 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, Amutha Rajagopal, M. D. is affiliated with 4 Medicare-billing facilities across 2 states.
City And County OF San Francisco
San Francisco, CA
Portland Adventist Medical Center
Portland, OR
University OF California Sfgh Medical Group
San Francisco, CA
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).
Brand vs generic prescribing mix · Above average
Amutha Rajagopal, M. D. - brand share 35.0%
Addiction Medicine (Internal Medicine) Physician average
35% brand-name claims vs 65% generic, on 4,099 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.
4,099
Total Claims
$3.4M
Total Drug Cost
157
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,091
- Total Day Supply
- 144,175
- Brand vs Generic
- 35% brand / 65% generic
- Brand Drug Cost
- $3.3M
- Generic Drug Cost
- $117K
- Opioid Claims
- 157 (3.8% rate)
- Antibiotic Claims
- 41
Patient Demographics
- Average Patient Age
- 61.8 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 17% female / 83% male
- Age Distribution
- <65: 90, 65-74: 58, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Amutha Rajagopal, M. D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Biktarvy
Biktarvy
342 claims
- Atorvastatin Calcium
Atorvastatin Calcium
231 claims
- Pifeltro 102
Pifeltro
102 claims
- Gabapentin 91
Gabapentin
91 claims
- Tamsulosin Hcl 90
Tamsulosin Hcl
90 claims
- Vascepa 85
Vascepa
85 claims
- Amlodipine Besylat… 81
Amlodipine Besylate-Benazepril
81 claims
- Ozempic 75
Ozempic
75 claims
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 342 |
| Atorvastatin Calcium | 231 |
| Pifeltro Doravirine | 102 |
| Gabapentin | 91 |
| Tamsulosin Hcl | 90 |
| Vascepa Icosapent Ethyl | 85 |
| Amlodipine Besylate-Benazepril Amlodipine Besylate/Benazepril | 81 |
| Ozempic Semaglutide | 75 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 74 |
| Pregabalin | 72 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Internal Medicine) Physician in OR →
All providers in Oregon →
Compare specialties →
Addiction Medicine (Internal Medicine) Physician Overview
How Amutha Rajagopal, M. D. fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.
553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider
Amutha Rajagopal, M. D.'s 4,099 claims are above the specialty average of 1,403.
Nationwide Addiction Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rajagopal, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2013)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction Medicine (Internal Medicine) Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Rajagopal.
One of 12 Addiction Medicine (Internal Medicine) Physician providers enrolled in Oregon, 5 are shown here.
Frequently Asked Questions
What is Amutha Rajagopal, M. D.'s specialty? ▼
Amutha Rajagopal, M. D. specializes in Addiction Medicine (Internal Medicine) Physician and practices in Portland, Oregon. Credentials: M. D..
How much does Amutha Rajagopal, M. D. prescribe under Medicare Part D? ▼
In 2023, Amutha Rajagopal, M. D. wrote 4,099 Medicare Part D claims totaling $3.4M in drug costs for 157 beneficiaries.
Where is Amutha Rajagopal, M. D. located? ▼
Amutha Rajagopal, M. D. is located at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239. Phone: (503) 494-5862.
What is Amutha Rajagopal, M. D.'s NPI number? ▼
Amutha Rajagopal, M. D.'s National Provider Identifier (NPI) is 1124465745, issued on 05/23/2013.
Does Amutha Rajagopal, M. D. prescribe more brand-name or generic drugs? ▼
Amutha Rajagopal, M. D.'s prescribing is 35% brand-name and 65% generic drugs by claim count, with $3.3M in brand drug costs.
Does Amutha Rajagopal, M. D. prescribe opioids? ▼
Yes, Amutha Rajagopal, M. D. had 157 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
What drugs does Amutha Rajagopal, M. D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Amutha Rajagopal, M. D.'s most frequently prescribed drugs include Biktarvy, Atorvastatin Calcium, Pifeltro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amutha Rajagopal, M. D. accept Medicare? ▼
Amutha Rajagopal, M. D. appears in CMS Medicare data with 4,099 Part D claims and 157 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amutha Rajagopal, M. D.'s credentials? ▼
Amutha Rajagopal, M. D.'s NPI is 1124465745 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
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.