Robert Ha, MD
NPI 1750302188 · Internal Medicine Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Ha, MD is a Internal Medicine Physician provider in Garden Grove, CA (NPI 1750302188).
Provider details
- NPI number
- 1750302188
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A55299 (CA)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,383 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 | 2,090 | $91 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 633 | $133 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 319 | $140 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 257 | $57 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 245 | $136 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 207 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 923 | 245 |
| Amlodipine Besylate | 787 | 205 |
| Losartan Potassium | 633 | 138 |
| Memantine Hcl | 516 | 82 |
| Omeprazole | 497 | 144 |
| Meloxicam | 482 | 106 |
| Metformin Hcl | 448 | 111 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,692 across 73 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
Additional practice locations (1)
- 18111 Brookhurst St Ste 6300Fountain Valley, CA 92708-6728Phone: (714) 847-6727Fax: (714) 847-6643
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2019-12-30
- Certified
- 2019-12-30
Frequently asked questions
- What is Robert Ha's NPI number?
- Robert Ha's National Provider Identifier (NPI) is 1750302188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Ha's specialty?
- Robert Ha is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Ha located?
- Robert Ha's practice location on file with NPPES is 9896 Garden Grove Blvd, Garden Grove, CA 92844-1643.
- What is Robert Ha's phone number?
- The practice phone number listed in the NPPES registry for Robert Ha is (714) 636-3032.
- Does Robert Ha accept Medicare?
- Robert Ha is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Ha's NPI active?
- Yes — Robert Ha's NPI (1750302188) is active in the NPPES registry as of the last update on 2019-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.