Allen Ninh, MD
NPI 1104386721 · Anesthesiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Ninh, MD is a Anesthesiology Physician provider in Stanford, CA (NPI 1104386721).
Provider details
- NPI number
- 1104386721
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
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
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
100 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 33 | $47 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 21 | $241 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 19 | $118 |
| Anesthesia for Procedure on Heart and Large Blood Vessels00560 | 14 | $648 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 13 | $3 |
Typical Medicare-allowed amounts for these services range $3–$648 (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
- 2019-03-20
- Last updated
- 2024-08-22
- Certified
- 2024-08-22
Frequently asked questions
- What is Allen Ninh's NPI number?
- Allen Ninh's National Provider Identifier (NPI) is 1104386721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Ninh's specialty?
- Allen Ninh is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Ninh located?
- Allen Ninh's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Allen Ninh's phone number?
- The practice phone number listed in the NPPES registry for Allen Ninh is (650) 723-4000.
- Does Allen Ninh accept Medicare?
- Allen Ninh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Ninh's NPI active?
- Yes — Allen Ninh's NPI (1104386721) is active in the NPPES registry as of the last update on 2024-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.