NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1083080022
Verify on CMS → Cynthia Armstrong
Nurse Practitioner in Springfield, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in 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
832
Medicare Part D claims · 54 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Cynthia Armstrong filed 832 Medicare Part D claims in 2024 as a Nurse Practitioner in Springfield, Missouri, prescribing 89% generic.
- 832
- Part D claims, 2024
- 89%
- generic prescribing
- ≥72nd
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Cynthia Armstrong
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1083080022), first enumerated 08/13/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 832 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1083080022 · Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1083080022
- ENUM-MID 2015
- TAX-MEGA 90K Nurse Practitioner
- RX-LIGHT 832
- BOOK-LIGHT 1,618 in Missouri
- PHOTO-ENUM Daisy Lara · 2015
Cynthia Armstrong's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
832 ≥ 72nd percentile 72% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Cynthia Armstrong?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
832 27% vs specialty avg
Specialty distribution in Missouri
How Nurse Practitioner compares to other specialties among Missouri 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 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).
Practice Address
Provider Details
| NPI | 1083080022 |
|---|---|
| Specialty | Nurse Practitioner |
| Gender | Female |
| NPI Issued | 08/13/2015 |
Hospital and facility affiliations
Facilities where Cynthia Armstrong 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.
Lester E Cox Medical Centers
Springfield, MO
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
Cynthia Armstrong - brand share 11.0%
Nurse Practitioner average
11% brand-name claims vs 89% generic, on 832 2024 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 2024.
832
Total Claims
$30K
Total Drug Cost
54
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,051.367
- Total Day Supply
- 30,343
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $19K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 61.2 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 29, 65-74: 14, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Cynthia Armstrong prescribes most
Top Medicare Part D drugs by claim count, 2024
- Lisinopril
Lisinopril
63 claims
- Levothyroxine Sodium
Levothyroxine Sodium
58 claims
- Gabapentin
Gabapentin
38 claims
- Famotidine
Famotidine
29 claims
- Fluticasone Propio…
Fluticasone Propionate
27 claims
- Amlodipine Besylate
Amlodipine Besylate
26 claims
- Buspirone Hcl
Buspirone Hcl
26 claims
- Lamotrigine
Lamotrigine
26 claims
| Drug | Claims |
|---|---|
| Lisinopril | 63 |
| Levothyroxine Sodium | 58 |
| Gabapentin | 38 |
| Famotidine | 29 |
| Fluticasone Propionate | 27 |
| Amlodipine Besylate | 26 |
| Buspirone Hcl | 26 |
| Lamotrigine | 26 |
| Omeprazole | 26 |
| Meloxicam | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Cynthia Armstrong fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Cynthia Armstrong's 832 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Armstrong, both outside Missouri so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Armstrong.
One of 1,618 Nurse Practitioner providers enrolled in Missouri, 5 are shown here.
Caitlin Aaron
NP-C
Lees Summit, MO
Sarah Abaricia
FNP
Saint Peters, MO
Hawo Abukar
Blue Springs, MO
Morgan Ackerman
NP
Chesterfield, MO
Holly Ackermann
FNP
De Soto, MO
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cynthia Armstrong's specialty? ▼
Cynthia Armstrong specializes in Nurse Practitioner and practices in Springfield, Missouri.
How much does Cynthia Armstrong prescribe under Medicare Part D? ▼
In 2024, Cynthia Armstrong wrote 832 Medicare Part D claims totaling $30K in drug costs for 54 beneficiaries.
Where is Cynthia Armstrong located? ▼
Cynthia Armstrong is located at 3800 S NATIONAL AVE STE 700, Springfield, MO, 65807. Phone: (417) 269-8817.
What is Cynthia Armstrong's NPI number? ▼
Cynthia Armstrong's National Provider Identifier (NPI) is 1083080022, issued on 08/13/2015.
Does Cynthia Armstrong prescribe more brand-name or generic drugs? ▼
Cynthia Armstrong's prescribing is 11% brand-name and 89% generic drugs by claim count, with $19K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Cynthia Armstrong prescribe most often? ▼
Based on 2024 Medicare Part D data, Cynthia Armstrong's most frequently prescribed drugs include Lisinopril, Levothyroxine Sodium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cynthia Armstrong accept Medicare? ▼
Cynthia Armstrong appears in CMS Medicare data with 832 Part D claims and 54 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cynthia Armstrong's credentials? ▼
Cynthia Armstrong's NPI is 1083080022. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.