Ashish Kalthia, MD
NPI 1508880659 · Specialist · Garden Grove, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashish Kalthia, MD is a Specialist provider in Garden Grove, CA (NPI 1508880659).
Provider details
- NPI number
- 1508880659
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A78472 (CA)
Specialties & taxonomies
Other Service Providers
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
1,787 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 646 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 527 | $119 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 227 | $358 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 163 | $114 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 84 | $52 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcium Acetate | 86 | 20 |
| Losartan Potassium | 75 | 22 |
| Furosemide | 60 | 19 |
| Amlodipine Besylate | 49 | 18 |
| Dapagliflozin Propanediolbrand: Farxiga | 35 | — |
| Prednisone | 31 | — |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$246 across 4 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
- 2006-07-26
- Last updated
- 2023-11-29
- Certified
- 2023-11-29
Frequently asked questions
- What is Ashish Kalthia's NPI number?
- Ashish Kalthia's National Provider Identifier (NPI) is 1508880659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashish Kalthia's specialty?
- Ashish Kalthia is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Ashish Kalthia located?
- Ashish Kalthia's practice location on file with NPPES is 12665 Garden Grove Blvd Ste 211, Garden Grove, CA 92843-1916.
- What is Ashish Kalthia's phone number?
- The practice phone number listed in the NPPES registry for Ashish Kalthia is (714) 636-2890.
- Does Ashish Kalthia accept Medicare?
- Ashish Kalthia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashish Kalthia's NPI active?
- Yes — Ashish Kalthia's NPI (1508880659) is active in the NPPES registry as of the last update on 2023-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.