Charles Zerez, M.D.
NPI 1972691533 · Internal Medicine Physician · Honolulu, HI
Charles Zerez, M.D. is a Internal Medicine Physician provider in Honolulu, HI (NPI 1972691533).
Provider details
- NPI number
- 1972691533
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-10938 (HI)
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
486 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 | 237 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 197 | $83 |
| Removal of Impacted Ear Wax69210 | 25 | $32 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $123 |
| Advance Care Planning, First 30 Minutes99497 | 13 | $52 |
Typical Medicare-allowed amounts for these services range $32–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 376 | 106 |
| Rosuvastatin Calcium | 358 | 108 |
| Atorvastatin Calcium | 267 | 79 |
| Amlodipine Besylate | 196 | 56 |
| Omeprazole | 133 | 45 |
| Levothyroxine Sodium | 122 | 35 |
| Semaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$97 across 3 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
- 2006-10-10
- Last updated
- 2010-09-23
Frequently asked questions
- What is Charles Zerez's NPI number?
- Charles Zerez's National Provider Identifier (NPI) is 1972691533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Zerez's specialty?
- Charles Zerez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Zerez located?
- Charles Zerez's practice location on file with NPPES is 888 S King St, Honolulu, HI 96813-3009.
- What is Charles Zerez's phone number?
- The practice phone number listed in the NPPES registry for Charles Zerez is (808) 522-4359.
- Is Charles Zerez's NPI active?
- Yes — Charles Zerez's NPI (1972691533) is active in the NPPES registry as of the last update on 2010-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.