Ivan Ongom, MD
NPI 1659502433 · Hospitalist Physician · Dayton, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ivan Ongom, MD is a Hospitalist Physician provider in Dayton, OH (NPI 1659502433).
Provider details
- NPI number
- 1659502433
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-098603 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
973 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 342 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 232 | $112 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 229 | $107 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 152 | $162 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $122 |
Typical Medicare-allowed amounts for these services range $74–$162 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 31 | 30 |
| Pantoprazole Sodium | 29 | 18 |
| Carvedilol | 27 | 17 |
| Apixabanbrand: Eliquis | 26 | 15 |
| Furosemide | 26 | 17 |
| Metoprolol Succinate | 26 | 17 |
| Levofloxacin | 24 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-28
- Last updated
- 2018-04-26
Frequently asked questions
- What is Ivan Ongom's NPI number?
- Ivan Ongom's National Provider Identifier (NPI) is 1659502433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ivan Ongom's specialty?
- Ivan Ongom is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ivan Ongom located?
- Ivan Ongom's practice location on file with NPPES is 30 E Apple St, Dayton, OH 45409-2939.
- What is Ivan Ongom's phone number?
- The practice phone number listed in the NPPES registry for Ivan Ongom is (937) 208-8394.
- Does Ivan Ongom accept Medicare?
- Ivan Ongom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ivan Ongom's NPI active?
- Yes — Ivan Ongom's NPI (1659502433) is active in the NPPES registry as of the last update on 2018-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.