NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1588721195 M.D.
Verify on CMS → John Koller, M.D.
Family Medicine Physician in Kodiak, Alaska.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 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
897
Medicare Part D claims · 81 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
79%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.6/100
▲ 8 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
John Koller, M.D. reported a CMS MIPS final score of 91.6/100 - above the 83.5 national average - and filed 897 Medicare Part D claims in 2023.
- 91.6/100
- MIPS score · +8 vs avg
- 897
- Part D claims, 2023
- 79%
- 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.
CMS NPPES provider registry desk
NPI 1588721195 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1588721195
- ENUM-MID 2007
- TAX-MEGA 148K Family Medicine
- MIPS-ABOVE 91.6/100
- RX-LIGHT 897
- BOOK-LIGHT 688 in Alaska
- PHOTO-FINISH Ousama Aboushaar · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Koller · this pr…
Koller · this provider
91.6 MIPS pts
- Stephanie Agyema…
Stephanie Agyemang
91.6 MIPS pts
- Katie Gray · near
Katie Gray
91.6 MIPS pts
- Ousama Aboushaar…
Ousama Aboushaar
91.6 MIPS pts
- Sharon Acevedo ·…
Sharon Acevedo
91.6 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
John Koller, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
92 ≥ 61st percentile 61% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where John Koller, M.D. sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, John Koller, M.D. writes more Part D claims than 33% of them and scores higher on MIPS quality than 65% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is John Koller, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
John Koller, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 John Koller, M.D.?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
897 74% vs specialty avg
MIPS final score
91.6/100 8.1 pts vs avg
Specialty distribution in Alaska
How Family Medicine Physician compares to other specialties among Alaska providers
Medicare quality performance, MIPS
John Koller, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 91.6/100
- vs 83.5 national avg · 2023 performance year
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 | 1588721195 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/02/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
91.6277
Final Score
Measured-score avg: 83.5
80.4254
Quality
98
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
John Koller, M.D. - brand share 18.0%
Family Medicine Physician average
18% brand-name claims vs 79% generic, on 897 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.
897
Total Claims
$177K
Total Drug Cost
81
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,848
- Total Day Supply
- 51,193
- Brand vs Generic
- 18% brand / 79% generic
- Brand Drug Cost
- $161K
- Generic Drug Cost
- $14K
- Antibiotic Claims
- 63
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 48% female / 52% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Koller, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Losartan Potassium
Losartan Potassium
77 claims
- Atorvastatin Calcium
Atorvastatin Calcium
39 claims
- Amlodipine Besylate
Amlodipine Besylate
37 claims
- Azithromycin 28
Azithromycin
28 claims
- Omeprazole 26
Omeprazole
26 claims
- Metformin Hcl 24
Metformin Hcl
24 claims
- Famotidine 22
Famotidine
22 claims
- Tamsulosin Hcl 22
Tamsulosin Hcl
22 claims
| Drug | Claims |
|---|---|
| Losartan Potassium | 77 |
| Atorvastatin Calcium | 39 |
| Amlodipine Besylate | 37 |
| Azithromycin | 28 |
| Omeprazole | 26 |
| Metformin Hcl | 24 |
| Famotidine | 22 |
| Tamsulosin Hcl | 22 |
| Metoprolol Succinate | 20 |
| Prednisone | 20 |
* 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 John Koller, M.D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
John Koller, M.D.'s 897 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Koller, both outside Alaska so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (91.6 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Alaska
Other clinicians with the same primary specialty enrolled in Alaska, drawn from the same CMS NPPES roster as Koller.
One of 688 Family Medicine Physician providers enrolled in Alaska, 5 are shown here.
Dr. Charles Aarons
MD
Anchorage, AK
Dr. David Abel
DO
Anchorage, AK
Dr. Brian Accola
M.D.
Fairbanks, AK
Dr. Stephen Ake
D.O.
Fairbanks, AK
Dr. Allan Alberton
M.D.
Anchorage, AK
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Koller, M.D.'s specialty? ▼
John Koller, M.D. specializes in Family Medicine Physician and practices in Kodiak, Alaska. Credentials: M.D..
How much does John Koller, M.D. prescribe under Medicare Part D? ▼
In 2023, John Koller, M.D. wrote 897 Medicare Part D claims totaling $177K in drug costs for 81 beneficiaries.
What is John Koller, M.D.'s Medicare quality score? ▼
John Koller, M.D. has a CMS MIPS Final Score of 91.6/100 (Quality: 80.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Koller, M.D. located? ▼
John Koller, M.D. is located at 202 CENTER AVE., Kodiak, AK, 99615. Phone: (907) 486-6188.
What is John Koller, M.D.'s NPI number? ▼
John Koller, M.D.'s National Provider Identifier (NPI) is 1588721195, issued on 01/02/2007.
Does John Koller, M.D. prescribe more brand-name or generic drugs? ▼
John Koller, M.D.'s prescribing is 18% brand-name and 79% generic drugs by claim count, with $161K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 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 John Koller, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Koller, M.D.'s most frequently prescribed drugs include Losartan Potassium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Koller, M.D. accept Medicare? ▼
John Koller, M.D. appears in CMS Medicare data with 897 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Koller, M.D.'s credentials? ▼
John Koller, M.D.'s NPI is 1588721195 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.
- 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
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.