Sandy Marks, M.D.
NPI 1265420087 · Anesthesiology Physician · Fort Collins, CO
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandy Marks, M.D. is a Anesthesiology Physician provider in Fort Collins, CO (NPI 1265420087).
Provider details
- NPI number
- 1265420087
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0037167 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
107 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Anesthesia for Procedure on Heart and Large Blood Vessels00560 | 31 | $468 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 29 | $42 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 24 | $181 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 12 | $80 |
| Anesthesia for X-Ray on Artery of Brain, Heart, Or Chest01926 | 11 | $277 |
Typical Medicare-allowed amounts for these services range $42–$468 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-06
- Last updated
- 2013-06-07
Frequently asked questions
- What is Sandy Marks's NPI number?
- Sandy Marks's National Provider Identifier (NPI) is 1265420087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandy Marks's specialty?
- Sandy Marks is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sandy Marks located?
- Sandy Marks's practice location on file with NPPES is 1236 E Elizabeth St, Fort Collins, CO 80524-4000.
- What is Sandy Marks's phone number?
- The practice phone number listed in the NPPES registry for Sandy Marks is (970) 224-2985.
- Does Sandy Marks accept Medicare?
- Sandy Marks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandy Marks's NPI active?
- Yes — Sandy Marks's NPI (1265420087) is active in the NPPES registry as of the last update on 2013-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.