NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1184614760 D.O.
Verify on CMS → Jamison Allen, D.O.
Family Medicine Physician in Sycamore, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,640 in Family 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
5K
Medicare Part D claims · 385 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.2K
123 payments · CMS Open Payments (Sunshine Act)
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
Jamison Allen, D.O. filed 4,684 Medicare Part D claims in 2023 as a Family Medicine Physician in Sycamore, Illinois, prescribing 87% generic.
- 5K
- Part D claims, 2023
- 87%
- 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.
Jamison Allen, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,684 Top 7% higher than 93% 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
✓
Board certification likely (heuristic, not verified)
Jamison Allen, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Jamison Allen, D.O.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
4,684 37% vs specialty avg
Specialty distribution in Illinois
How Family Medicine Physician compares to other specialties among Illinois 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 Family 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).
Jamison Allen, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 2560 HAUSER ROSS DR, Sycamore, IL, 60178, with a listed phone of (703) 964-8199. NPI 1184614760 was issued on 10/25/2005.
Medicare Part D records for calendar year 2023 show 4,684 prescription claims written by this provider, covering 385 Medicare beneficiaries and totaling roughly $515K in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.3%.
Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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 | 1184614760 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 10/25/2005 |
Hospital and facility affiliations
Facilities where Jamison Allen, D.O. 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.
Jamison Allen DO LLC
Geneva, IL
Sycamore Medical Associates LLC
Geneva, IL
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 Jamison Allen, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$2.2K
Largest payer
AstraZeneca Pharmaceuticals LP
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.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Jamison Allen, D.O.. To verify Jamison Allen, D.O.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Jamison Allen, D.O. - brand share 12.0%
Family Medicine Physician average
12% brand-name claims vs 87% generic, on 4,684 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.
4,684
Total Claims
$515K
Total Drug Cost
385
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,655
- Total Day Supply
- 311,753
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $425K
- Generic Drug Cost
- $88K
- Opioid Claims
- 61 (1.3% rate)
- Antibiotic Claims
- 116
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 22, 65-74: 195, 75-84: 141, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jamison Allen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
391 claims
- Levothyroxine Sodium
Levothyroxine Sodium
208 claims
- Lisinopril
Lisinopril
208 claims
- Amlodipine Besylate
Amlodipine Besylate
176 claims
- Metoprolol Succinate 153
Metoprolol Succinate
153 claims
- Metformin Hcl 133
Metformin Hcl
133 claims
- Losartan Potassium 127
Losartan Potassium
127 claims
- Metoprolol Tartrate 122
Metoprolol Tartrate
122 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 391 |
| Levothyroxine Sodium | 208 |
| Lisinopril | 208 |
| Amlodipine Besylate | 176 |
| Metoprolol Succinate | 153 |
| Metformin Hcl | 133 |
| Losartan Potassium | 127 |
| Metoprolol Tartrate | 122 |
| Rosuvastatin Calcium | 103 |
| Tamsulosin Hcl | 98 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Jamison Allen, D.O. fits within the Family Medicine Physician landscape nationally.
147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Jamison Allen, D.O.'s 4,684 claims are above the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Allen.
Dr. Jon Aagaard
MD
Wheaton, IL
Dr. Napoleon Abando
MD
Woodstock, IL
Dr. Nikka Abaricia
MD
Chicago, IL
Mohemmed Abbas
Chicago, IL
Muhammad Abbas
Alton, IL
Compare Family Medicine 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Illinois
Frequently Asked Questions
What is Jamison Allen, D.O.'s specialty? ▼
Jamison Allen, D.O. specializes in Family Medicine Physician and practices in Sycamore, Illinois. Credentials: D.O..
How much does Jamison Allen, D.O. prescribe under Medicare Part D? ▼
In 2023, Jamison Allen, D.O. wrote 4,684 Medicare Part D claims totaling $515K in drug costs for 385 beneficiaries.
Where is Jamison Allen, D.O. located? ▼
Jamison Allen, D.O. is located at 2560 HAUSER ROSS DR, Sycamore, IL, 60178. Phone: (703) 964-8199.
What is Jamison Allen, D.O.'s NPI number? ▼
Jamison Allen, D.O.'s National Provider Identifier (NPI) is 1184614760, issued on 10/25/2005.
Does Jamison Allen, D.O. prescribe more brand-name or generic drugs? ▼
Jamison Allen, D.O.'s prescribing is 12% brand-name and 87% generic drugs by claim count, with $425K in brand drug costs.
Does Jamison Allen, D.O. prescribe opioids? ▼
Yes, Jamison Allen, D.O. had 61 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Jamison Allen, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jamison Allen, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jamison Allen, D.O. accept Medicare? ▼
Jamison Allen, D.O. appears in CMS Medicare data with 4,684 Part D claims and 385 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jamison Allen, D.O.'s credentials? ▼
Jamison Allen, D.O.'s NPI is 1184614760 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
Compiled from official public sources by the PlainDoctor editorial team.