John Hernandez, MD
NPI 1073683546 · Internal Medicine Physician · Montebello, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hernandez, MD is a Internal Medicine Physician provider in Montebello, CA (NPI 1073683546).
Provider details
- NPI number
- 1073683546
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A42641 (CA)
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
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
1,217 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 475 | $98 |
| Admn Sarscov2 Vacc 1 Dose90480 | 138 | $47 |
| Initial Nursing Facility Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99304 | 130 | $84 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 74 | $79 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 72 | $9 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 205 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 582 | 148 |
| Rosuvastatin Calcium | 448 | 118 |
| Omeprazole | 445 | 121 |
| Atorvastatin Calcium | 399 | 110 |
| Losartan Potassium | 294 | 82 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 284 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$849 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
- 2006-11-09
- Last updated
- 2014-03-31
Frequently asked questions
- What is John Hernandez's NPI number?
- John Hernandez's National Provider Identifier (NPI) is 1073683546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hernandez's specialty?
- John Hernandez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Hernandez located?
- John Hernandez's practice location on file with NPPES is 526 N Montebello Blvd, Montebello, CA 90640.
- What is John Hernandez's phone number?
- The practice phone number listed in the NPPES registry for John Hernandez is (323) 726-1109.
- Does John Hernandez accept Medicare?
- John Hernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hernandez's NPI active?
- Yes — John Hernandez's NPI (1073683546) is active in the NPPES registry as of the last update on 2014-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.