John Blake, M.D.
NPI 1447220363 · Family Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Blake, M.D. is a Family Medicine Physician provider in Knoxville, TN (NPI 1447220363).
Provider details
- NPI number
- 1447220363
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD16391 (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
20 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
1,770 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 466 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 342 | $123 |
| Hemoglobin A1c Level83036 | 187 | $10 |
| Urinalysis, Manual Test81002 | 156 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 148 | $14 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 144 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 161 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 538 | 141 |
| Amlodipine Besylate | 471 | 130 |
| Atorvastatin Calcium | 460 | 125 |
| Alprazolam | 380 | 59 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 354 | 61 |
| Gabapentin | 288 | 53 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$921 across 37 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
- 2006-01-24
- Last updated
- 2014-02-03
Frequently asked questions
- What is John Blake's NPI number?
- John Blake's National Provider Identifier (NPI) is 1447220363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Blake's specialty?
- John Blake is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Blake located?
- John Blake's practice location on file with NPPES is 4306 Asheville Hwy, Knoxville, TN 37914-3601.
- What is John Blake's phone number?
- The practice phone number listed in the NPPES registry for John Blake is (865) 522-2168.
- Does John Blake accept Medicare?
- John Blake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Blake's NPI active?
- Yes — John Blake's NPI (1447220363) is active in the NPPES registry as of the last update on 2014-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.