Kristen Mackenzie, MD
NPI 1164953360 · Pain Medicine (Anesthesiology) Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristen Mackenzie, MD is a Pain Medicine (Anesthesiology) Physician provider in Stanford, CA (NPI 1164953360).
Provider details
- NPI number
- 1164953360
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A157928 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 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
886 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 258 | $152 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 124 | $19 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 87 | $52 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 62 | $88 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 58 | $207 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tizanidine Hcl | 85 | 32 |
| Gabapentin | 83 | 31 |
| Pregabalin | 82 | 29 |
| Baclofen | 47 | 13 |
| Duloxetine Hcl | 46 | 16 |
| Tramadol Hcl | 40 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-21
- Last updated
- 2024-04-11
- Certified
- 2024-04-11
Frequently asked questions
- What is Kristen Mackenzie's NPI number?
- Kristen Mackenzie's National Provider Identifier (NPI) is 1164953360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristen Mackenzie's specialty?
- Kristen Mackenzie is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Kristen Mackenzie located?
- Kristen Mackenzie's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Kristen Mackenzie's phone number?
- The practice phone number listed in the NPPES registry for Kristen Mackenzie is (650) 723-4000.
- Does Kristen Mackenzie accept Medicare?
- Kristen Mackenzie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristen Mackenzie's NPI active?
- Yes — Kristen Mackenzie's NPI (1164953360) is active in the NPPES registry as of the last update on 2024-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.