NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1861431603 M.D.
Verify on CMS → Michael Zanolli, M.D.
Dermatology Physician in Nashville, 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 14,645 in Dermatology 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
669
Medicare Part D claims · 267 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$34.34
2 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 Zanolli, M.D. filed 669 Medicare Part D claims in 2023 as a Dermatology Physician in Nashville, Tennessee, prescribing 83% generic.
- 669
- Part D claims, 2023
- 83%
- generic prescribing
- $34.34
- 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.
Michael Zanolli, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
669 Top 31% higher than 69% 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
◑
Board-eligible specialty (heuristic, not verified)
Michael Zanolli, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Michael Zanolli, M.D.?
Quality data not reportedPrimary specialty
Dermatology Physician
Medicare Part D claims
669 8% vs specialty avg
Specialty distribution in Tennessee
How Dermatology Physician compares to other specialties among Tennessee 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 Dermatology 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).
Michael Zanolli, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 4230 HARDING PIKE STE 501, Nashville, TN, 37205, with a listed phone of (629) 255-2133. NPI 1861431603 was issued on 06/06/2006.
Medicare Part D records for calendar year 2023 show 669 prescription claims written by this provider, covering 267 Medicare beneficiaries and totaling roughly $783K in drug spend, split 17% brand-name and 83% generic by claim count.
Dermatology Physician is a mid-sized specialty nationwide, with 14,645 enrolled providers across 53 states and an average of 729 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 | 1861431603 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/06/2006 |
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 Zanolli, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$34
Largest payer
Lilly USA, 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 · Typical
Michael Zanolli, M.D. - brand share 17.0%
Dermatology Physician average
17% brand-name claims vs 83% generic, on 669 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.
669
Total Claims
$783K
Total Drug Cost
267
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,071
- Total Day Supply
- 30,145
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $761K
- Generic Drug Cost
- $22K
- Antibiotic Claims
- 58
Patient Demographics
- Average Patient Age
- 75.5 years
- Avg HCC Risk Score
- 1.06
- Gender Split
- 39% female / 61% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Zanolli, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Imiquimod
Imiquimod
86 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
72 claims
- Methotrexate
Methotrexate
70 claims
- Betamethasone Dipr…
Betamethasone Dipropionate
57 claims
- Clobetasol Propion…
Clobetasol Propionate
35 claims
- Doxycycline Hyclate 34
Doxycycline Hyclate
34 claims
- Acyclovir 23
Acyclovir
23 claims
- Cosentyx Sensoread… 21
Cosentyx Sensoready (2 Pens)
21 claims
| Drug | Claims |
|---|---|
| Imiquimod | 86 |
| Triamcinolone Acetonide | 72 |
| Methotrexate Methotrexate Sodium | 70 |
| Betamethasone Dipropionate | 57 |
| Clobetasol Propionate | 35 |
| Doxycycline Hyclate | 34 |
| Acyclovir | 23 |
| Cosentyx Sensoready (2 Pens) Secukinumab | 21 |
| Ketoconazole | 19 |
| Metronidazole | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Michael Zanolli, M.D. fits within the Dermatology Physician landscape nationally.
14,645
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider
Michael Zanolli, M.D.'s 669 claims are below the specialty average of 729.
Nearby Dermatology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Zanolli.
Dr. Vlatka Agnetta
M.D.
Chattanooga, TN
Dr. Adam Allan
DO
Clarksville, TN
Dr. Anne Allen
MD
Knoxville, TN
Dr. Elizabeth Anderson
MD
Knoxville, TN
Dr. Saundrett Arrindell
MD
Nashville, TN
Compare Dermatology 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 Dermatology 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 Zanolli, M.D.'s specialty? ▼
Michael Zanolli, M.D. specializes in Dermatology Physician and practices in Nashville, Tennessee. Credentials: M.D..
How much does Michael Zanolli, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Zanolli, M.D. wrote 669 Medicare Part D claims totaling $783K in drug costs for 267 beneficiaries.
Where is Michael Zanolli, M.D. located? ▼
Michael Zanolli, M.D. is located at 4230 HARDING PIKE STE 501, Nashville, TN, 37205. Phone: (629) 255-2133.
What is Michael Zanolli, M.D.'s NPI number? ▼
Michael Zanolli, M.D.'s National Provider Identifier (NPI) is 1861431603, issued on 06/06/2006.
Does Michael Zanolli, M.D. prescribe more brand-name or generic drugs? ▼
Michael Zanolli, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $761K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 14,645 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does Michael Zanolli, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Zanolli, M.D.'s most frequently prescribed drugs include Imiquimod, Triamcinolone Acetonide, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Zanolli, M.D. accept Medicare? ▼
Michael Zanolli, M.D. appears in CMS Medicare data with 669 Part D claims and 267 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Zanolli, M.D.'s credentials? ▼
Michael Zanolli, M.D.'s NPI is 1861431603 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.
- 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.