NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1528534211 FNP
Verify on CMS → Alison Alter, FNP
Family Nurse Practitioner in Boulder, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 209,817 in Family Nurse Practitioner, 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
350
Medicare Part D claims · 57 beneficiaries · Family Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Alison Alter, FNP filed 350 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Boulder, Colorado.
- 350
- Part D claims, 2023
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.
Alison Alter, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
350 Top 43% higher than 57% 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 Alison Alter, FNP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
350 71% vs specialty avg
Specialty distribution in Colorado
How Family Nurse Practitioner compares to other specialties among Colorado 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 Nurse Practitioner. 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).
Alison Alter, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 2525 13TH ST, Boulder, CO, 80304, with a listed phone of (303) 650-4460. NPI 1528534211 was issued on 10/19/2018.
Medicare Part D records for calendar year 2023 show 350 prescription claims written by this provider, covering 57 Medicare beneficiaries and totaling roughly $28K in drug spend.
Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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 | 1528534211 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 10/19/2018 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
350
Total Claims
$28K
Total Drug Cost
57
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 673
- Total Day Supply
- 19,371
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 66.4 years
- Avg HCC Risk Score
- 1.11
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 16, 65-74: 30, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alison Alter, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
34 claims
- Metformin Hcl
Metformin Hcl
18 claims
- Finasteride
Finasteride
16 claims
- Gabapentin
Gabapentin
15 claims
- Amlodipine Besylate 13
Amlodipine Besylate
13 claims
- Levothyroxine Sodium 13
Levothyroxine Sodium
13 claims
- Losartan Potassium 13
Losartan Potassium
13 claims
- Methenamine Hippur… 12
Methenamine Hippurate
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 34 |
| Metformin Hcl | 18 |
| Finasteride | 16 |
| Gabapentin | 15 |
| Amlodipine Besylate | 13 |
| Levothyroxine Sodium | 13 |
| Losartan Potassium | 13 |
| Methenamine Hippurate | 12 |
| Omeprazole | 12 |
| Baclofen | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Alison Alter, FNP fits within the Family Nurse Practitioner landscape nationally.
209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Alison Alter, FNP's 350 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Alter.
Dr. Abbey Aaroe
FNP
Canon City, CO
Dr. Simone Abachiche
NP-C
Colorado Springs, CO
Christina Abbott
Longmont, CO
Dr. Patricia Abbott
ARNP
Aurora, CO
Dr. Isadora Abel
FNP
Denver, CO
Compare Family Nurse Practitioner 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 Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner 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
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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 Colorado
Frequently Asked Questions
What is Alison Alter, FNP's specialty? ▼
Alison Alter, FNP specializes in Family Nurse Practitioner and practices in Boulder, Colorado. Credentials: FNP.
How much does Alison Alter, FNP prescribe under Medicare Part D? ▼
In 2023, Alison Alter, FNP wrote 350 Medicare Part D claims totaling $28K in drug costs for 57 beneficiaries.
Where is Alison Alter, FNP located? ▼
Alison Alter, FNP is located at 2525 13TH ST, Boulder, CO, 80304. Phone: (303) 650-4460.
What is Alison Alter, FNP's NPI number? ▼
Alison Alter, FNP's National Provider Identifier (NPI) is 1528534211, issued on 10/19/2018.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Alison Alter, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Alison Alter, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Finasteride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alison Alter, FNP accept Medicare? ▼
Alison Alter, FNP appears in CMS Medicare data with 350 Part D claims and 57 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alison Alter, FNP's credentials? ▼
Alison Alter, FNP's NPI is 1528534211 with credentials FNP. 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.