NPI registry status
Active
2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1316384068 D.O.
Verify on CMS → Ahren Geilenfeldt, D.O.
Physical Medicine & Rehabilitation Physician in Medford, 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 15,336 in Physical Medicine & Rehabilitation 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
18
Medicare Part D claims · Physical Medicine & Rehabilitation Physician avg: 781
What the federal data shows
Ahren Geilenfeldt, D.O. filed 18 Medicare Part D claims in 2023 as a Physical Medicine & Rehabilitation Physician in Medford, Oregon.
- 18
- Part D claims, 2023
- ≥0th
- 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.
CMS NPPES provider registry desk
NPI 1316384068 · Physical Medicine & Rehabilitation Physician
NPI-10 · ENUM-MID · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1316384068
- ENUM-MID 2013
- TAX-MID 15K Physical Medicine
- RX-TRACE 18
- BOOK-THIN 165 in Oregon
- PHOTO-ENUM Laurentiu Dinescu · 2013
Ahren Geilenfeldt, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
18 ≥ 0th percentile 0% 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-eligible specialty (heuristic, not verified)
Ahren Geilenfeldt, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ahren Geilenfeldt, D.O.?
Quality data not reportedPrimary specialty
Physical Medicine & Rehabilitation Physician
Medicare Part D claims
18 98% vs specialty avg
Specialty distribution in Oregon
How Physical Medicine & Rehabilitation 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 Physical Medicine & Rehabilitation 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 | 1316384068 |
|---|---|
| Specialty | Physical Medicine & Rehabilitation Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 06/03/2013 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
18
Total Claims
$711
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 20
- Total Day Supply
- 531
- Generic Drug Cost
- $224
Patient Demographics
- Average Patient Age
- 68.9 years
- Avg HCC Risk Score
- 1.53
More Physical Medicine & Rehabilitation Physician in OR →
All providers in Oregon →
Compare specialties →
Physical Medicine & Rehabilitation Physician Overview
How Ahren Geilenfeldt, D.O. fits within the Physical Medicine & Rehabilitation Physician landscape nationally.
15,336
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider
Ahren Geilenfeldt, D.O.'s 18 claims are below the specialty average of 781.
Nationwide Physical Medicine & Rehabilitation Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Geilenfeldt, 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 Physical Medicine & Rehabilitation Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Geilenfeldt.
One of 165 Physical Medicine & Rehabilitation Physician providers enrolled in Oregon, 5 are shown here.
Dr. Daniel Albrecht
MD
Hillsboro, OR
Dr. Steven Andersen
MD
Portland, OR
Kelsey Anderson
Salem, OR
Dr. Bryan Andresen
M.D.
Eugene, OR
Dr. Robert Arnsdorf
MD
Eugene, OR
Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ahren Geilenfeldt, D.O.'s specialty? ▼
Ahren Geilenfeldt, D.O. specializes in Physical Medicine & Rehabilitation Physician and practices in Medford, Oregon. Credentials: D.O..
How much does Ahren Geilenfeldt, D.O. prescribe under Medicare Part D? ▼
In 2023, Ahren Geilenfeldt, D.O. wrote 18 Medicare Part D claims totaling $711 in drug costs for N/A beneficiaries.
Where is Ahren Geilenfeldt, D.O. located? ▼
Ahren Geilenfeldt, D.O. is located at 70 BOWER DR, Medford, OR, 97501. Phone: (541) 732-8360.
What is Ahren Geilenfeldt, D.O.'s NPI number? ▼
Ahren Geilenfeldt, D.O.'s National Provider Identifier (NPI) is 1316384068, issued on 06/03/2013.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,336 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
Does Ahren Geilenfeldt, D.O. accept Medicare? ▼
Ahren Geilenfeldt, D.O. appears in CMS Medicare data with 18 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ahren Geilenfeldt, D.O.'s credentials? ▼
Ahren Geilenfeldt, D.O.'s NPI is 1316384068 with credentials D.O.. 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.