NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1285911412 PA-C
Verify on CMS → Nicholas Alonzo, PA-C
Physician Assistant in Rapid City, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, 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
243
Medicare Part D claims · 156 beneficiaries · Physician Assistant avg: 790
Industry payments
$312
8 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Nicholas Alonzo, PA-C filed 243 Medicare Part D claims in 2023 as a Physician Assistant in Rapid City, South Dakota.
- 243
- Part D claims, 2023
- $312
- industry payments (Sunshine Act)
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.
Nicholas Alonzo, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
243 49th percentile higher than 49% 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 Nicholas Alonzo, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
243 69% vs specialty avg
Specialty distribution in South Dakota
How Physician Assistant compares to other specialties among South Dakota 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 Physician Assistant. 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).
Nicholas Alonzo, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 7220 MOUNT RUSHMORE RD, Rapid City, SD, 57702, with a listed phone of (605) 341-1414. NPI 1285911412 was issued on 11/16/2011.
Medicare Part D records for calendar year 2023 show 243 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 62.6%.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1285911412 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 11/16/2011 |
Hospital and facility affiliations
Facilities where Nicholas Alonzo, PA-C 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.
Black Hills Orthopedic And Spine Center Inc
Rapid City, SD
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 Nicholas Alonzo, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$312
Largest payer
Pacira Pharmaceuticals Incorporated
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
243
Total Claims
$2K
Total Drug Cost
156
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 249
- Total Day Supply
- 2,345
- Generic Drug Cost
- $2K
- Opioid Claims
- 152 (62.6% rate)
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 0.87
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Nicholas Alonzo, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
47 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
43 claims
- Tramadol Hcl
Tramadol Hcl
39 claims
- Amoxicillin
Amoxicillin
23 claims
- Hydromorphone Hcl 13
Hydromorphone Hcl
13 claims
- Clindamycin Hcl 11
Clindamycin Hcl
11 claims
- Methylprednisolone 11
Methylprednisolone
11 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 47 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 43 |
| Tramadol Hcl | 39 |
| Amoxicillin | 23 |
| Hydromorphone Hcl | 13 |
| Clindamycin Hcl | 11 |
| Methylprednisolone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Nicholas Alonzo, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Nicholas Alonzo, PA-C's 243 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Alonzo.
Dr. Michael Aanderud
PA-C
Rapid City, SD
Dr. Benjamin Abbey
PA-C
Mitchell, SD
Dr. Julia Abraham
PA-C
Dell Rapids, SD
Riley Ackerman
Rapid City, SD
Dr. Amanda Adams
PA-C
Huron, SD
Compare Physician Assistant 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 South Dakota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant 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.
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Medical Specialties Explained
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Explore South Dakota
Frequently Asked Questions
What is Nicholas Alonzo, PA-C's specialty? ▼
Nicholas Alonzo, PA-C specializes in Physician Assistant and practices in Rapid City, South Dakota. Credentials: PA-C.
How much does Nicholas Alonzo, PA-C prescribe under Medicare Part D? ▼
In 2023, Nicholas Alonzo, PA-C wrote 243 Medicare Part D claims totaling $2K in drug costs for 156 beneficiaries.
Where is Nicholas Alonzo, PA-C located? ▼
Nicholas Alonzo, PA-C is located at 7220 MOUNT RUSHMORE RD, Rapid City, SD, 57702. Phone: (605) 341-1414.
What is Nicholas Alonzo, PA-C's NPI number? ▼
Nicholas Alonzo, PA-C's National Provider Identifier (NPI) is 1285911412, issued on 11/16/2011.
Does Nicholas Alonzo, PA-C prescribe opioids? ▼
Yes, Nicholas Alonzo, PA-C had 152 opioid claims in 2023 with an opioid prescribing rate of 62.6%.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Nicholas Alonzo, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Nicholas Alonzo, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Hydrocodone-Acetaminophen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nicholas Alonzo, PA-C accept Medicare? ▼
Nicholas Alonzo, PA-C appears in CMS Medicare data with 243 Part D claims and 156 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nicholas Alonzo, PA-C's credentials? ▼
Nicholas Alonzo, PA-C's NPI is 1285911412 with credentials PA-C. 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.
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.