Cheryl Johnstone, M.D.
NPI 1629097530 · Internal Medicine Physician · St Petersburg, FL
Cheryl Johnstone, M.D. is a Internal Medicine Physician provider in St Petersburg, FL (NPI 1629097530).
Provider details
- NPI number
- 1629097530
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME178099 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,303 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 | 508 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 321 | $91 |
| Blood Glucose (sugar) Level82947 | 254 | $4 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 241 | $8 |
| Automated Urinalysis Test81003 | 187 | $2 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 431 | 117 |
| Atorvastatin Calcium | 367 | 117 |
| Amlodipine Besylate | 309 | 94 |
| Losartan Potassium | 275 | 80 |
| Lisinopril | 252 | 70 |
| Rosuvastatin Calcium | 229 | 66 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,121 across 65 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
- 2006-07-19
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Cheryl Johnstone's NPI number?
- Cheryl Johnstone's National Provider Identifier (NPI) is 1629097530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheryl Johnstone's specialty?
- Cheryl Johnstone is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cheryl Johnstone located?
- Cheryl Johnstone's practice location on file with NPPES is 2552 1st Ave N, St Petersburg, FL 33713.
- What is Cheryl Johnstone's phone number?
- The practice phone number listed in the NPPES registry for Cheryl Johnstone is (727) 516-7272.
- Is Cheryl Johnstone's NPI active?
- Yes — Cheryl Johnstone's NPI (1629097530) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.