NPI registry status
Active
2026 NPPES data Specialist NPI 1245323963 M.D.
Verify on CMS → Ashok Jayaram, M.D.
Specialist 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 69,608 in Specialist, 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
3K
Medicare Part D claims · 443 beneficiaries · Specialist avg: 1K
Generic prescribing
87%
generic claims · 13% 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
Ashok Jayaram, M.D. filed 3,091 Medicare Part D claims in 2023 as a Specialist in Portland, Oregon, prescribing 87% generic.
- 3K
- Part D claims, 2023
- 87%
- generic prescribing
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.
Ashok Jayaram, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,091 Top 11% higher than 89% 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
What does the federal data show about Ashok Jayaram, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
3,091 110% vs specialty avg
Specialty distribution in Oregon
How Specialist 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 Specialist. 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).
Ashok Jayaram, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 9155 SW BARNES RD, Portland, OR, 97225, with a listed phone of (503) 292-7005. NPI 1245323963 was issued on 10/02/2006.
Medicare Part D records for calendar year 2023 show 3,091 prescription claims written by this provider, covering 443 Medicare beneficiaries and totaling roughly $469K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 91.7%.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1245323963 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/02/2006 |
Brand vs generic prescribing mix · Typical
Ashok Jayaram, M.D. - brand share 13.0%
Specialist average
13% brand-name claims vs 87% generic, on 3,091 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.
3,091
Total Claims
$469K
Total Drug Cost
443
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,153
- Total Day Supply
- 83,815
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $344K
- Generic Drug Cost
- $125K
- Opioid Claims
- 2,833 (91.7% rate)
Patient Demographics
- Average Patient Age
- 68.9 years
- Avg HCC Risk Score
- 1.60
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 117, 65-74: 205, 75-84: 103, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ashok Jayaram, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Morphine Sulfate Er
Morphine Sulfate Er
1,417 claims
- Methadone Hcl 338
Methadone Hcl
338 claims
- Fentanyl 271
Fentanyl
271 claims
- Oxycontin 265
Oxycontin
265 claims
- Hydrocodone-Acetam… 130
Hydrocodone-Acetaminophen
130 claims
- Oxycodone Hcl 123
Oxycodone Hcl
123 claims
- Xtampza Er 103
Xtampza Er
103 claims
- Tramadol Hcl 83
Tramadol Hcl
83 claims
| Drug | Claims |
|---|---|
| Morphine Sulfate Er Morphine Sulfate | 1,417 |
| Methadone Hcl | 338 |
| Fentanyl | 271 |
| Oxycontin Oxycodone Hcl | 265 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 130 |
| Oxycodone Hcl | 123 |
| Xtampza Er Oxycodone Myristate | 103 |
| Tramadol Hcl | 83 |
| Pregabalin | 76 |
| Gabapentin | 34 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Ashok Jayaram, M.D. fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Ashok Jayaram, M.D.'s 3,091 claims are above the specialty average of 1,474.
Nearby Specialist Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Jayaram.
Taylor Abrigo
Portland, OR
Dr. Jeffrey Absalon
MD
Bend, OR
Dr. Christopher Adams
CRM
Albany, OR
Dr. Ross Adams
LMT
Ashland, OR
Dr. Daryl Adamson
MD
Portland, OR
Compare Specialist 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 Specialist 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Ashok Jayaram, M.D.'s specialty? ▼
Ashok Jayaram, M.D. specializes in Specialist and practices in Portland, Oregon. Credentials: M.D..
How much does Ashok Jayaram, M.D. prescribe under Medicare Part D? ▼
In 2023, Ashok Jayaram, M.D. wrote 3,091 Medicare Part D claims totaling $469K in drug costs for 443 beneficiaries.
Where is Ashok Jayaram, M.D. located? ▼
Ashok Jayaram, M.D. is located at 9155 SW BARNES RD, Portland, OR, 97225. Phone: (503) 292-7005.
What is Ashok Jayaram, M.D.'s NPI number? ▼
Ashok Jayaram, M.D.'s National Provider Identifier (NPI) is 1245323963, issued on 10/02/2006.
Does Ashok Jayaram, M.D. prescribe more brand-name or generic drugs? ▼
Ashok Jayaram, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $344K in brand drug costs.
Does Ashok Jayaram, M.D. prescribe opioids? ▼
Yes, Ashok Jayaram, M.D. had 2,833 opioid claims in 2023 with an opioid prescribing rate of 91.7%.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Ashok Jayaram, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ashok Jayaram, M.D.'s most frequently prescribed drugs include Morphine Sulfate Er, Methadone Hcl, Fentanyl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ashok Jayaram, M.D. accept Medicare? ▼
Ashok Jayaram, M.D. appears in CMS Medicare data with 3,091 Part D claims and 443 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ashok Jayaram, M.D.'s credentials? ▼
Ashok Jayaram, M.D.'s NPI is 1245323963 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.