Nicolai Wallace, MD
NPI 1588241863 · Hospitalist Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicolai Wallace, MD is a Hospitalist Physician provider in San Diego, CA (NPI 1588241863).
Provider details
- NPI number
- 1588241863
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A194552 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
17 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $161 |
Typical Medicare-allowed amounts for these services range $161–$161 (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
Additional practice locations (1)
- 4077 Fifth AveSan Diego, CA 92103-2105Phone: (619) 260-7125
Registry dates
- Enumerated
- 2021-03-24
- Last updated
- 2024-07-30
- Certified
- 2024-07-30
Frequently asked questions
- What is Nicolai Wallace's NPI number?
- Nicolai Wallace's National Provider Identifier (NPI) is 1588241863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicolai Wallace's specialty?
- Nicolai Wallace is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Nicolai Wallace located?
- Nicolai Wallace's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Nicolai Wallace's phone number?
- The practice phone number listed in the NPPES registry for Nicolai Wallace is (619) 543-6268.
- Does Nicolai Wallace accept Medicare?
- Nicolai Wallace is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicolai Wallace's NPI active?
- Yes — Nicolai Wallace's NPI (1588241863) is active in the NPPES registry as of the last update on 2024-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.