NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1538193438 MD
Verify on CMS → Erinn Gardner, MD
Allergy & Immunology Physician in Canton, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,412 in Allergy & Immunology 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 · 325 beneficiaries · Allergy & Immunology Physician avg: 788
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$898.27
43 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Erinn Gardner, MD filed 1,609 Medicare Part D claims in 2024 as an Allergy & Immunology Physician in Canton, Georgia, prescribing 64% generic.
- 2K
- Part D claims, 2024
- 64%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥81st
- 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 Erinn Gardner, MD
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 1538193438), first enumerated 07/10/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,609 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$898.27 in reported industry payments (43 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1538193438 · Allergy & Immunology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1538193438
- ENUM-LEGACY 2006
- TAX-NARROW 3,412
- RX-MID 1,609
- BOOK-THIN 89 in Georgia
- PHOTO-ENUM Leandra Tonweber, PA-C · 2006
Erinn Gardner, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,609 ≥ 81st percentile 81% 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
✓
Board certification likely (heuristic, not verified)
Erinn Gardner, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Erinn Gardner, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
1,609 104% vs specialty avg
Specialty distribution in Georgia
How Allergy & Immunology Physician compares to other specialties among Georgia 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 Allergy & Immunology Physician. 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 | 1538193438 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/10/2006 |
Hospital and facility affiliations
Facilities where Erinn Gardner, MD 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.
Atlanta Allergy And Asthma Clinic PA
Canton, GA
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 Erinn Gardner, MD. Source: openpaymentsdata.cms.gov.
Total received
$898
Largest payer
GlaxoSmithKline, LLC.
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.
Brand vs generic prescribing mix · Above average
Erinn Gardner, MD - brand share 36.0%
Allergy & Immunology Physician average
36% brand-name claims vs 64% generic, on 1,609 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.
1,609
Total Claims
$712K
Total Drug Cost
325
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,285.7
- Total Day Supply
- 63,773
- Brand vs Generic
- 36% brand / 64% generic
- Brand Drug Cost
- $682K
- Generic Drug Cost
- $30K
- Antibiotic Claims
- 52
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 78% female / 22% male
- Age Distribution
- <65: 31, 65-74: 181, 75-84: 102, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Erinn Gardner, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Montelukast Sodium
Montelukast Sodium
220 claims
- Azelastine Hcl
Azelastine Hcl
173 claims
- Fluticasone Propio…
Fluticasone Propionate
139 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
121 claims
- Trelegy Ellipta
Trelegy Ellipta
92 claims
- Levocetirizine Dih… 81
Levocetirizine Dihydrochloride
81 claims
- Famotidine 77
Famotidine
77 claims
- Breo Ellipta 70
Breo Ellipta
70 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 220 |
| Azelastine Hcl | 173 |
| Fluticasone Propionate | 139 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 121 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 92 |
| Levocetirizine Dihydrochloride | 81 |
| Famotidine | 77 |
| Breo Ellipta Fluticasone/Vilanterol | 70 |
| Ipratropium Bromide | 58 |
| Prednisone | 57 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How Erinn Gardner, MD fits within the Allergy & Immunology Physician landscape nationally.
3,412
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
788
Avg Claims per Provider
Erinn Gardner, MD's 1,609 claims are above the specialty average of 788.
Nationwide Allergy & Immunology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Gardner, both outside Georgia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Allergy & Immunology Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Gardner.
One of 89 Allergy & Immunology Physician providers enrolled in Georgia, 5 are shown here.
Dr. Alan Alvarado
MD
Valdosta, GA
Dr. Mary Anderson
MD
Evans, GA
Dr. Jennifer Appleyard
MD
Savannah, GA
Dr. Maricelis Armstrong
MD
Austell, GA
Dr. Ronald Beebe
MD
Gainesville, GA
Compare Allergy & Immunology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Erinn Gardner, MD's specialty? ▼
Erinn Gardner, MD specializes in Allergy & Immunology Physician and practices in Canton, Georgia. Credentials: MD.
How much does Erinn Gardner, MD prescribe under Medicare Part D? ▼
In 2024, Erinn Gardner, MD wrote 1,609 Medicare Part D claims totaling $712K in drug costs for 325 beneficiaries.
Where is Erinn Gardner, MD located? ▼
Erinn Gardner, MD is located at 100 OLD BALL GROUND HWY, Canton, GA, 30114. Phone: (770) 953-3331.
What is Erinn Gardner, MD's NPI number? ▼
Erinn Gardner, MD's National Provider Identifier (NPI) is 1538193438, issued on 07/10/2006.
Does Erinn Gardner, MD prescribe more brand-name or generic drugs? ▼
Erinn Gardner, MD's prescribing is 36% brand-name and 64% generic drugs by claim count, with $682K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,412 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 788 Medicare Part D claims per year.
What drugs does Erinn Gardner, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Erinn Gardner, MD's most frequently prescribed drugs include Montelukast Sodium, Azelastine Hcl, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Erinn Gardner, MD accept Medicare? ▼
Erinn Gardner, MD appears in CMS Medicare data with 1,609 Part D claims and 325 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Erinn Gardner, MD's credentials? ▼
Erinn Gardner, MD's NPI is 1538193438 with credentials MD. 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.