NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1245279090 M.D.
Verify on CMS → Michael Hollie, M.D.
Allergy & Immunology Physician in Chattanooga, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,394 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
1K
Medicare Part D claims · 243 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
87.7/100
▲ 5 pts above national avg 83.1 · Above neutral
Industry payments
$679.44
30 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Hollie, M.D. reported a CMS MIPS final score of 87.7/100 - above the 83.1 national average - and filed 1,259 Medicare Part D claims in 2023.
- 87.7/100
- MIPS score · +5 vs avg
- 1K
- Part D claims, 2023
- 71%
- 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.
Michael Hollie, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
88 Top 46% higher than 54% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Michael Hollie, M.D. sits
This provider among allergy & immunology physician peers
Across the 740 allergy & immunology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Hollie, M.D. writes more Part D claims than 70% of them and scores higher on MIPS quality than 67% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one allergy & immunology physician peer from a representative sample of 60; the gold marker is Michael Hollie, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Hollie, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Michael Hollie, M.D.?
High performer (top quartile)Primary specialty
Allergy & Immunology Physician
Medicare Part D claims
1,259 65% vs specialty avg
MIPS final score
87.7/100 4.6 pts vs avg
Specialty distribution in Tennessee
How Allergy & Immunology Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Michael Hollie, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average
- MIPS Final Score
- 87.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy & Immunology Physician) - 87.7/100 vs national avg 83.1
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).
Michael Hollie, M.D. appears in the CMS NPPES registry as an Allergy & Immunology Physician provider holding M.D. credentials at 1720 GUNBARREL RD, Chattanooga, TN, 37421, with a listed phone of (423) 499-4100. NPI 1245279090 was issued on 06/06/2006.
Medicare Part D records for calendar year 2023 show 1,259 prescription claims written by this provider, covering 243 Medicare beneficiaries and totaling roughly $436K in drug spend, split 29% brand-name and 71% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.7/100 for the 2023 performance year (Quality 85.7), compared with the national average of 83.1.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,394 enrolled providers across 52 states and an average of 764 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 | 1245279090 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/06/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.735
Final Score
Avg: 83.1
85.67
Quality
83
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Michael Hollie, M.D. 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.
Galen Medical Group, PC
Dalton, 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 Michael Hollie, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$679
Largest payer
AstraZeneca Pharmaceuticals LP
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
Michael Hollie, M.D. - brand share 29.0%
Allergy & Immunology Physician average
29% brand-name claims vs 71% generic, on 1,259 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.
1,259
Total Claims
$436K
Total Drug Cost
243
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,220
- Total Day Supply
- 62,878
- Brand vs Generic
- 29% brand / 71% generic
- Brand Drug Cost
- $406K
- Generic Drug Cost
- $30K
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.08
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 35, 65-74: 120, 75-84: 75, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Hollie, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
154 claims
- Fluticasone Propio…
Fluticasone Propionate
143 claims
- Azelastine Hcl
Azelastine Hcl
116 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
104 claims
- Famotidine
Famotidine
84 claims
- Symbicort
Symbicort
77 claims
- Levocetirizine Dih… 48
Levocetirizine Dihydrochloride
48 claims
- Fluticasone-Salmet… 35
Fluticasone-Salmeterol
35 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 154 |
| Fluticasone Propionate | 143 |
| Azelastine Hcl | 116 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 104 |
| Famotidine | 84 |
| Symbicort Budesonide/Formoterol Fumarate | 77 |
| Levocetirizine Dihydrochloride | 48 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 35 |
| Ipratropium Bromide | 35 |
| Prednisone | 33 |
* 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 Michael Hollie, M.D. fits within the Allergy & Immunology Physician landscape nationally.
3,394
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
Michael Hollie, M.D.'s 1,259 claims are above the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Hollie.
Dr. Sarah Adams
M.D.
Hendersonville, TN
Dr. Jean Alexander
MD
Dickson, TN
Dr. Krystyna Alimurka
M.D.
Hixson, TN
Dr. Shirley Avery
MD
Knoxville, TN
Dr. Joseph Belleau
MD
Brentwood, TN
Compare Allergy & Immunology Physician 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology Physician 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
Verify Credentials
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 Tennessee
Frequently Asked Questions
What is Michael Hollie, M.D.'s specialty? ▼
Michael Hollie, M.D. specializes in Allergy & Immunology Physician and practices in Chattanooga, Tennessee. Credentials: M.D..
How much does Michael Hollie, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Hollie, M.D. wrote 1,259 Medicare Part D claims totaling $436K in drug costs for 243 beneficiaries.
What is Michael Hollie, M.D.'s Medicare quality score? ▼
Michael Hollie, M.D. has a CMS MIPS Final Score of 87.7/100 (Quality: 85.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Hollie, M.D. located? ▼
Michael Hollie, M.D. is located at 1720 GUNBARREL RD, Chattanooga, TN, 37421. Phone: (423) 499-4100.
What is Michael Hollie, M.D.'s NPI number? ▼
Michael Hollie, M.D.'s National Provider Identifier (NPI) is 1245279090, issued on 06/06/2006.
Does Michael Hollie, M.D. prescribe more brand-name or generic drugs? ▼
Michael Hollie, M.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $406K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,394 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does Michael Hollie, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Hollie, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Fluticasone Propionate, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Hollie, M.D. accept Medicare? ▼
Michael Hollie, M.D. appears in CMS Medicare data with 1,259 Part D claims and 243 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Hollie, M.D.'s credentials? ▼
Michael Hollie, M.D.'s NPI is 1245279090 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
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.