Mark Krel, D.O.
NPI 1326450685 · Neurological Surgery Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Krel, D.O. is a Neurological Surgery Physician provider in Palo Alto, CA (NPI 1326450685).
Provider details
- NPI number
- 1326450685
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A14234 (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
12 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
270 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 | 54 | $132 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 40 | $182 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $92 |
| Insertion of Spinal Neurostimulator Electrode Array Through Skin63650 | 30 | $333 |
| Advance Care Planning, First 30 Minutes99497 | 26 | $76 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,559 across 76 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
- 2014-05-21
- Last updated
- 2021-05-26
- Certified
- 2021-05-26
Frequently asked questions
- What is Mark Krel's NPI number?
- Mark Krel's National Provider Identifier (NPI) is 1326450685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Krel's specialty?
- Mark Krel is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Krel located?
- Mark Krel's practice location on file with NPPES is 213 Quarry Rd, Palo Alto, CA 94304-1416.
- What is Mark Krel's phone number?
- The practice phone number listed in the NPPES registry for Mark Krel is (818) 421-0130.
- Does Mark Krel accept Medicare?
- Mark Krel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Krel's NPI active?
- Yes — Mark Krel's NPI (1326450685) is active in the NPPES registry as of the last update on 2021-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.