Timothy Chryssikos, MD
NPI 1841673332 · Neurological Surgery Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Chryssikos, MD is a Neurological Surgery Physician provider in San Francisco, CA (NPI 1841673332).
Provider details
- NPI number
- 1841673332
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A175606 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
233 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) |
|---|---|---|
| Fusion of Additional Segment of Spine22614 | 71 | $415 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 71 | $131 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $188 |
| Placement of Stabilizing Device to Back, 3-6 Spine Bone Segments22842 | 19 | $811 |
| Fusion of Spine in Neck By Posterior Approach22600 | 18 | $878 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,351 across 37 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
- 2015-07-02
- Last updated
- 2022-06-30
- Certified
- 2022-06-30
Frequently asked questions
- What is Timothy Chryssikos's NPI number?
- Timothy Chryssikos's National Provider Identifier (NPI) is 1841673332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Chryssikos's specialty?
- Timothy Chryssikos is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Chryssikos located?
- Timothy Chryssikos's practice location on file with NPPES is 400 Parnassus Ave # A303, San Francisco, CA 94143-2202.
- What is Timothy Chryssikos's phone number?
- The practice phone number listed in the NPPES registry for Timothy Chryssikos is (415) 353-2739.
- Does Timothy Chryssikos accept Medicare?
- Timothy Chryssikos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Chryssikos's NPI active?
- Yes — Timothy Chryssikos's NPI (1841673332) is active in the NPPES registry as of the last update on 2022-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.