Christine Kwak, MD
NPI 1588655898 · Orthopaedic Surgery Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christine Kwak, MD is a Orthopaedic Surgery Physician provider in Fontana, CA (NPI 1588655898).
Provider details
- NPI number
- 1588655898
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A88325 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 35 | 33 |
| Ibuprofen | 19 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-04
- Last updated
- 2021-12-08
Frequently asked questions
- What is Christine Kwak's NPI number?
- Christine Kwak's National Provider Identifier (NPI) is 1588655898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christine Kwak's specialty?
- Christine Kwak is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christine Kwak located?
- Christine Kwak's practice location on file with NPPES is 9985 Sierra Ave, Fontana, CA 92335-6720.
- What is Christine Kwak's phone number?
- The practice phone number listed in the NPPES registry for Christine Kwak is (909) 609-2008.
- Does Christine Kwak accept Medicare?
- Christine Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christine Kwak's NPI active?
- Yes — Christine Kwak's NPI (1588655898) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.