NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1497746671 MD
Verify on CMS → John Zappia, MD
Otolaryngology Physician in Famington Hills, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,060 in Otolaryngology 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 · 577 beneficiaries · Otolaryngology Physician avg: 536
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$213.83
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
John Zappia, MD filed 1,573 Medicare Part D claims in 2024 as an Otolaryngology Physician in Famington Hills, Michigan, prescribing 91% generic.
- 2K
- Part D claims, 2024
- 91%
- 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 John Zappia, 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 1497746671), first enumerated 11/04/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,573 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
$213.83 in reported industry payments (4 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not John Zappia, MD's individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- 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 1497746671 · Otolaryngology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1497746671
- ENUM-LEGACY 2005
- TAX-MID 11K Otolaryngology Physician
- RX-MID 1,573
- BOOK-THIN 298 in Michigan
- PHOTO-ENUM Sherif Ammar, M.D. · 2005
John Zappia, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,573 ≥ 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)
John Zappia, 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 John Zappia, MD?
Quality data not reportedPrimary specialty
Otolaryngology Physician
Medicare Part D claims
1,573 193% vs specialty avg
Specialty distribution in Michigan
How Otolaryngology Physician compares to other specialties among Michigan 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 Otolaryngology 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 | 1497746671 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/04/2005 |
Hospital and facility affiliations
Facilities where John Zappia, 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.
Michigan Ear Institute PLLC
Farmington Hills, MI
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 John Zappia, MD. Source: openpaymentsdata.cms.gov.
Total received
$214
Largest payer
Cochlear Americas
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.
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to John Zappia, MD. To verify John Zappia, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
John Zappia, MD - brand share 9.0%
Otolaryngology Physician average
9% brand-name claims vs 91% generic, on 1,573 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.
1,573
Total Claims
$42K
Total Drug Cost
577
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,630.533
- Total Day Supply
- 68,417
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $31K
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 46, 65-74: 293, 75-84: 181, 85+: 57
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Zappia, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ciprofloxacin-Dexa…
Ciprofloxacin-Dexamethasone
164 claims
- Triamterene-Hydroc…
Triamterene-Hydrochlorothiazid
152 claims
- Indapamide
Indapamide
146 claims
- Nortriptyline Hcl
Nortriptyline Hcl
145 claims
- Methylprednisolone
Methylprednisolone
121 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
111 claims
- Hydrochlorothiazide
Hydrochlorothiazide
92 claims
- Diazepam 61
Diazepam
61 claims
| Drug | Claims |
|---|---|
| Ciprofloxacin-Dexamethasone Ciprofloxacin Hcl/Dexameth | 164 |
| Triamterene-Hydrochlorothiazid Triamterene/Hydrochlorothiazid | 152 |
| Indapamide | 146 |
| Nortriptyline Hcl | 145 |
| Methylprednisolone | 121 |
| Triamcinolone Acetonide | 111 |
| Hydrochlorothiazide | 92 |
| Diazepam | 61 |
| Meclizine Hcl | 51 |
| Clotrimazole-Betamethasone Clotrimazole/Betamethasone Dip | 48 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How John Zappia, MD fits within the Otolaryngology Physician landscape nationally.
11,060
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
536
Avg Claims per Provider
John Zappia, MD's 1,573 claims are above the specialty average of 536.
Nationwide Otolaryngology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Zappia, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Otolaryngology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Zappia.
One of 298 Otolaryngology Physician providers enrolled in Michigan, 5 are shown here.
Dr. Thabet Abbarah
M.D.
Waterford, MI
Dr. Meredith Adams
MD
Ann Arbor, MI
Dr. Chad Afman
MD
Grand Rapids, MI
Dr. Nasir Ahmad
MD
Flint, MI
Dr. Jan Akervall
MD
Farmington Hills, MI
Compare Otolaryngology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Zappia, MD's specialty? ▼
John Zappia, MD specializes in Otolaryngology Physician and practices in Famington Hills, Michigan. Credentials: MD.
How much does John Zappia, MD prescribe under Medicare Part D? ▼
In 2024, John Zappia, MD wrote 1,573 Medicare Part D claims totaling $42K in drug costs for 577 beneficiaries.
Where is John Zappia, MD located? ▼
John Zappia, MD is located at 30055 NORTHWESTERN HWY, Famington Hills, MI, 48334. Phone: (248) 865-4444.
What is John Zappia, MD's NPI number? ▼
John Zappia, MD's National Provider Identifier (NPI) is 1497746671, issued on 11/04/2005.
Does John Zappia, MD prescribe more brand-name or generic drugs? ▼
John Zappia, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $12K in brand drug costs.
How many Otolaryngology Physician providers are there in the US? ▼
There are 11,060 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 536 Medicare Part D claims per year.
What drugs does John Zappia, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, John Zappia, MD's most frequently prescribed drugs include Ciprofloxacin-Dexamethasone, Triamterene-Hydrochlorothiazid, Indapamide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Zappia, MD accept Medicare? ▼
John Zappia, MD appears in CMS Medicare data with 1,573 Part D claims and 577 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Zappia, MD's credentials? ▼
John Zappia, MD's NPI is 1497746671 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.