Ivan Mok, D.O.
NPI 1639494743 · Hospitalist Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ivan Mok, D.O. is a Hospitalist Physician provider in Houston, TX (NPI 1639494743).
Provider details
- NPI number
- 1639494743
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- N2196 (TX)
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 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
614 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 50 Minutes99233 | 273 | $118 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 155 | $112 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 85 | $78 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 62 | $173 |
| Initial Hospital Care With Same-Day Admission and Discharge With High Level of Medical Decision Making, Per Day, If Using Time, at Least 85 Minutes99236 | 39 | $203 |
Typical Medicare-allowed amounts for these services range $78–$203 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 32 | 32 |
| Cefdinir | 32 | 32 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 24 | 24 |
| Furosemide | 23 | 22 |
| Pantoprazole Sodium | 21 | 21 |
| Levofloxacin | 19 | 19 |
| Atorvastatin Calcium | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-31
- Last updated
- 2024-09-19
- Certified
- 2024-09-19
Frequently asked questions
- What is Ivan Mok's NPI number?
- Ivan Mok's National Provider Identifier (NPI) is 1639494743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ivan Mok's specialty?
- Ivan Mok is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ivan Mok located?
- Ivan Mok's practice location on file with NPPES is 4545 Post Oak Place Dr, Houston, TX 77027-3164.
- What is Ivan Mok's phone number?
- The practice phone number listed in the NPPES registry for Ivan Mok is (713) 960-8008.
- Does Ivan Mok accept Medicare?
- Ivan Mok is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ivan Mok's NPI active?
- Yes — Ivan Mok's NPI (1639494743) is active in the NPPES registry as of the last update on 2024-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.