Gerard Issvoran, DO
NPI 1558350272 · Family Medicine Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerard Issvoran, DO is a Family Medicine Physician provider in Monterey, CA (NPI 1558350272).
Provider details
- NPI number
- 1558350272
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A6978 (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
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
1,984 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 | 887 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 400 | $125 |
| Osteopathic Manipulative Treatment, 5-6 Body Regions98927 | 237 | $58 |
| Osteopathic Manipulative Treatment, 7-8 Body Regions98928 | 186 | $70 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 78 | $125 |
| Osteopathic Manipulative Treatment, 3-4 Body Regions98926 | 72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 151 | 43 |
| Olmesartan Medoxomil | 107 | 29 |
| Zolpidem Tartrate | 74 | 11 |
| Celecoxib | 60 | — |
| Amlodipine Besylate | 60 | 16 |
| Atorvastatin Calcium | 59 | 18 |
| Montelukast Sodium | 58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 across 4 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
- 2005-10-14
- Last updated
- 2014-11-07
Frequently asked questions
- What is Gerard Issvoran's NPI number?
- Gerard Issvoran's National Provider Identifier (NPI) is 1558350272, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerard Issvoran's specialty?
- Gerard Issvoran is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerard Issvoran located?
- Gerard Issvoran's practice location on file with NPPES is 24551 Silver Cloud Ct Ste 201, Monterey, CA 93940-6532.
- What is Gerard Issvoran's phone number?
- The practice phone number listed in the NPPES registry for Gerard Issvoran is (831) 333-2100.
- Does Gerard Issvoran accept Medicare?
- Gerard Issvoran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerard Issvoran's NPI active?
- Yes — Gerard Issvoran's NPI (1558350272) is active in the NPPES registry as of the last update on 2014-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.