Louis Ho, D.O.
NPI 1629375431 · Family Medicine Physician · Monrovia, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Ho, D.O. is a Family Medicine Physician provider in Monrovia, CA (NPI 1629375431).
Provider details
- NPI number
- 1629375431
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A11585 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
47 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $136 |
Typical Medicare-allowed amounts for these services range $136–$136 (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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 132 | 31 |
| Atorvastatin Calcium | 128 | 27 |
| Amlodipine Besylate | 95 | 22 |
| Metformin Hcl | 75 | 16 |
| Baclofen | 46 | 19 |
| Sitagliptin Phosphatebrand: Januvia | 37 | — |
| Lorazepam | 36 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-02-15
- Last updated
- 2018-08-29
Frequently asked questions
- What is Louis Ho's NPI number?
- Louis Ho's National Provider Identifier (NPI) is 1629375431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Ho's specialty?
- Louis Ho is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Ho located?
- Louis Ho's practice location on file with NPPES is 513 E Lime Ave, Monrovia, CA 91016.
- What is Louis Ho's phone number?
- The practice phone number listed in the NPPES registry for Louis Ho is (626) 445-1000.
- Does Louis Ho accept Medicare?
- Louis Ho is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Ho's NPI active?
- Yes — Louis Ho's NPI (1629375431) is active in the NPPES registry as of the last update on 2018-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.