Kristin Siu, PA-C
NPI 1841961414 · Physician Assistant · Folsom, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristin Siu, PA-C is a Physician Assistant provider in Folsom, CA (NPI 1841961414).
Provider details
- NPI number
- 1841961414
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
845 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 142 | $115 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 92 | $61 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $82 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 74 | $13 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 65 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 179 | 53 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 143 | 29 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 34 | — |
| Hydromorphone Hcl | 23 | — |
| Diazepam | 20 | 18 |
| Cyclobenzaprine Hcl | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109 across 6 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
- 2021-09-23
- Last updated
- 2023-06-09
- Certified
- 2023-06-09
Frequently asked questions
- What is Kristin Siu's NPI number?
- Kristin Siu's National Provider Identifier (NPI) is 1841961414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristin Siu's specialty?
- Kristin Siu is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kristin Siu located?
- Kristin Siu's practice location on file with NPPES is 2220 E Bidwell St, Folsom, CA 95630-3463.
- What is Kristin Siu's phone number?
- The practice phone number listed in the NPPES registry for Kristin Siu is (916) 800-4685.
- Does Kristin Siu accept Medicare?
- Kristin Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristin Siu's NPI active?
- Yes — Kristin Siu's NPI (1841961414) is active in the NPPES registry as of the last update on 2023-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.