Michael Stone, P.A.
NPI 1821017252 · Medical Physician Assistant · Greeneville, TN
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Stone, P.A. is a Medical Physician Assistant provider in Greeneville, TN (NPI 1821017252).
Provider details
- NPI number
- 1821017252
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
224 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $75 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $49 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 48 | $50 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 26 | $100 |
Typical Medicare-allowed amounts for these services range $49–$100 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 153 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 588 | 71 |
| Gabapentin | 515 | 64 |
| Omeprazole | 411 | 75 |
| Zolpidem Tartrate | 383 | 45 |
| Rosuvastatin Calcium | 355 | 77 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 313 | 62 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$678 across 38 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
- 2006-07-18
- Last updated
- 2015-06-17
Frequently asked questions
- What is Michael Stone's NPI number?
- Michael Stone's National Provider Identifier (NPI) is 1821017252, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Stone's specialty?
- Michael Stone is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michael Stone located?
- Michael Stone's practice location on file with NPPES is 438 E Vann Rd, Greeneville, TN 37743-7202.
- What is Michael Stone's phone number?
- The practice phone number listed in the NPPES registry for Michael Stone is (438) 278-1700.
- Does Michael Stone accept Medicare?
- Michael Stone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Stone's NPI active?
- Yes — Michael Stone's NPI (1821017252) is active in the NPPES registry as of the last update on 2015-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.