Michael Antiporda, M.D.
NPI 1083970669 · Surgery Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Antiporda, M.D. is a Surgery Physician provider in Knoxville, TN (NPI 1083970669).
Provider details
- NPI number
- 1083970669
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD61235 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
198 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 75 | $152 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $82 |
| Repair of Groin Hernia Using an Endoscope49650 | 20 | $439 |
| Repair of Hernia of Muscle at Esophagus and Stomach Using an Endoscope43281 | 16 | $1,353 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 192 | 169 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 84 | 82 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 71 | 65 |
| Omeprazole | 28 | 11 |
| Methylprednisolone | 17 | 15 |
| Metoclopramide Hcl | 16 | — |
| Ondansetron Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19,139 across 41 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-08
- Last updated
- 2020-06-02
- Certified
- 2020-06-02
Frequently asked questions
- What is Michael Antiporda's NPI number?
- Michael Antiporda's National Provider Identifier (NPI) is 1083970669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Antiporda's specialty?
- Michael Antiporda is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Antiporda located?
- Michael Antiporda's practice location on file with NPPES is 1819 Clinch Ave Ste 200, Knoxville, TN 37916-2435.
- What is Michael Antiporda's phone number?
- The practice phone number listed in the NPPES registry for Michael Antiporda is (865) 524-3695.
- Does Michael Antiporda accept Medicare?
- Michael Antiporda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Antiporda's NPI active?
- Yes — Michael Antiporda's NPI (1083970669) is active in the NPPES registry as of the last update on 2020-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.