Herman Mathias, M.D
NPI 1487767265 · Internal Medicine Physician · Hemet, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herman Mathias, M.D is a Internal Medicine Physician provider in Hemet, CA (NPI 1487767265).
Provider details
- NPI number
- 1487767265
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- A41055 (CA)
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
2,712 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 | 1,100 | $132 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 502 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 279 | $94 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 194 | $134 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 85 | $75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 471 | 144 |
| Atorvastatin Calcium | 371 | 111 |
| Levothyroxine Sodium | 316 | 80 |
| Allopurinol | 264 | 66 |
| Losartan Potassium | 234 | 74 |
| Amlodipine Besylate | 201 | 71 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,048 across 44 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
- 2006-08-16
- Last updated
- 2014-06-11
Frequently asked questions
- What is Herman Mathias's NPI number?
- Herman Mathias's National Provider Identifier (NPI) is 1487767265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herman Mathias's specialty?
- Herman Mathias is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Herman Mathias located?
- Herman Mathias's practice location on file with NPPES is 391 N San Jacinto St, Hemet, CA 92543-3118.
- What is Herman Mathias's phone number?
- The practice phone number listed in the NPPES registry for Herman Mathias is (951) 929-6003.
- Does Herman Mathias accept Medicare?
- Herman Mathias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herman Mathias's NPI active?
- Yes — Herman Mathias's NPI (1487767265) is active in the NPPES registry as of the last update on 2014-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.