NPI registry status
Active
2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1205060225 DO
Verify on CMS → Ann Magner, DO
Geriatric Medicine (Internal Medicine) Physician in Portland, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,161 in Geriatric 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
2K
Medicare Part D claims · 234 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
78%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.1/100
▲ 15 pts above national avg 83.1 · Exceptional
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
Ann Magner, DO reported a CMS MIPS final score of 98.1/100 - above the 83.1 national average - and filed 2,175 Medicare Part D claims in 2023.
- 98.1/100
- MIPS score · +15 vs avg
- 2K
- Part D claims, 2023
- 78%
- 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.
Ann Magner, DO's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 11% higher than 89% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Ann Magner, DO sits
This provider among geriatric medicine (internal medicine) physician peers
Across the 724 geriatric medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ann Magner, DO writes more Part D claims than 47% of them and scores higher on MIPS quality than 90% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one geriatric medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Ann Magner, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ann Magner, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Ann Magner, DO?
High performer (top quartile)Primary specialty
Geriatric Medicine (Internal Medicine) Physician
Medicare Part D claims
2,175 51% vs specialty avg
MIPS final score
98.1/100 15 pts vs avg
Specialty distribution in Maine
How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Maine providers
Medicare quality performance, MIPS
Ann Magner, DO's 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 98.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Geriatric Medicine (Internal Medicine) Physician) - 98.1/100 vs national avg 83.1
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).
Ann Magner, DO appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding DO credentials at 66 BRAMHALL ST, Portland, ME, 04102, with a listed phone of (207) 662-3157. NPI 1205060225 was issued on 05/05/2009.
Medicare Part D records for calendar year 2023 show 2,175 prescription claims written by this provider, covering 234 Medicare beneficiaries and totaling roughly $142K in drug spend, split 20% brand-name and 78% generic by claim count, with an opioid prescribing rate of 1.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.1/100 for the 2023 performance year (Quality 86.1), compared with the national average of 83.1.
Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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 | 1205060225 |
|---|---|
| Specialty | Geriatric Medicine (Internal Medicine) Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 05/05/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Ann Magner, DO 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.
Mainehealth
Bath, ME
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 · Typical
Ann Magner, DO - brand share 20.0%
Geriatric Medicine (Internal Medicine) Physician average
20% brand-name claims vs 78% generic, on 2,175 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.
2,175
Total Claims
$142K
Total Drug Cost
234
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,236
- Total Day Supply
- 53,191
- Brand vs Generic
- 20% brand / 78% generic
- Brand Drug Cost
- $92K
- Generic Drug Cost
- $49K
- Opioid Claims
- 22 (1.0% rate)
- Antibiotic Claims
- 68
Patient Demographics
- Average Patient Age
- 84.3 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 74% female / 26% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ann Magner, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sertraline Hcl
Sertraline Hcl
130 claims
- Levothyroxine Sodium
Levothyroxine Sodium
117 claims
- Atorvastatin Calcium
Atorvastatin Calcium
116 claims
- Eliquis
Eliquis
75 claims
- Furosemide
Furosemide
64 claims
- Amlodipine Besylate
Amlodipine Besylate
62 claims
- Omeprazole
Omeprazole
56 claims
- Bumetanide
Bumetanide
55 claims
| Drug | Claims |
|---|---|
| Sertraline Hcl | 130 |
| Levothyroxine Sodium | 117 |
| Atorvastatin Calcium | 116 |
| Eliquis Apixaban | 75 |
| Furosemide | 64 |
| Amlodipine Besylate | 62 |
| Omeprazole | 56 |
| Bumetanide | 55 |
| Warfarin Sodium | 54 |
| Potassium Chloride | 52 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Internal Medicine) Physician in ME →
All providers in Maine →
Compare specialties →
Geriatric Medicine (Internal Medicine) Physician Overview
How Ann Magner, DO fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.
4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider
Ann Magner, DO's 2,175 claims are below the specialty average of 4,450.
Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Magner.
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 Maine medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Internal 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 Maine
Frequently Asked Questions
What is Ann Magner, DO's specialty? ▼
Ann Magner, DO specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Portland, Maine. Credentials: DO.
How much does Ann Magner, DO prescribe under Medicare Part D? ▼
In 2023, Ann Magner, DO wrote 2,175 Medicare Part D claims totaling $142K in drug costs for 234 beneficiaries.
What is Ann Magner, DO's Medicare quality score? ▼
Ann Magner, DO has a CMS MIPS Final Score of 98.1/100 (Quality: 86.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ann Magner, DO located? ▼
Ann Magner, DO is located at 66 BRAMHALL ST, Portland, ME, 04102. Phone: (207) 662-3157.
What is Ann Magner, DO's NPI number? ▼
Ann Magner, DO's National Provider Identifier (NPI) is 1205060225, issued on 05/05/2009.
Does Ann Magner, DO prescribe more brand-name or generic drugs? ▼
Ann Magner, DO's prescribing is 20% brand-name and 78% generic drugs by claim count, with $92K in brand drug costs.
Does Ann Magner, DO prescribe opioids? ▼
Yes, Ann Magner, DO had 22 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does Ann Magner, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Magner, DO's most frequently prescribed drugs include Sertraline Hcl, Levothyroxine Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Magner, DO accept Medicare? ▼
Ann Magner, DO appears in CMS Medicare data with 2,175 Part D claims and 234 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Magner, DO's credentials? ▼
Ann Magner, DO's NPI is 1205060225 with credentials DO. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.