John Hervert, DO
NPI 1235428921 · Internal Medicine Physician · Deland, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hervert, DO is a Internal Medicine Physician provider in Deland, FL (NPI 1235428921).
Provider details
- NPI number
- 1235428921
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS18043 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 307 | 100 |
| Levothyroxine Sodium | 289 | 93 |
| Atorvastatin Calcium | 256 | 93 |
| Rosuvastatin Calcium | 226 | 75 |
| Losartan Potassium | 206 | 71 |
| Pantoprazole Sodium | 202 | 81 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,982 across 87 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
- 2011-04-04
- Last updated
- 2023-05-26
- Certified
- 2023-05-26
Frequently asked questions
- What is John Hervert's NPI number?
- John Hervert's National Provider Identifier (NPI) is 1235428921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hervert's specialty?
- John Hervert is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Hervert located?
- John Hervert's practice location on file with NPPES is 1590 S Sr 15a Ste 100, Deland, FL 32720-7817.
- What is John Hervert's phone number?
- The practice phone number listed in the NPPES registry for John Hervert is (386) 774-0016.
- Does John Hervert accept Medicare?
- John Hervert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hervert's NPI active?
- Yes — John Hervert's NPI (1235428921) is active in the NPPES registry as of the last update on 2023-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.