Michael Sullivan, MD
NPI 1598722381 · Anesthesiology Physician · Duarte, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Sullivan, MD is a Anesthesiology Physician provider in Duarte, CA (NPI 1598722381).
Provider details
- NPI number
- 1598722381
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G73318 (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 tenure25% of score
20 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
76 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 34 | $46 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 15 | $281 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 14 | $140 |
| Anesthesia for Other Closed Procedure on Chest00520 | 13 | $109 |
Typical Medicare-allowed amounts for these services range $46–$281 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$518 across 8 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
- 2006-04-27
- Last updated
- 2020-11-13
- Certified
- 2020-11-13
Frequently asked questions
- What is Michael Sullivan's NPI number?
- Michael Sullivan's National Provider Identifier (NPI) is 1598722381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Sullivan's specialty?
- Michael Sullivan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Sullivan located?
- Michael Sullivan's practice location on file with NPPES is 1500 E Duarte Rd, Duarte, CA 91010.
- What is Michael Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Michael Sullivan is (626) 359-8111.
- Does Michael Sullivan accept Medicare?
- Michael Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Sullivan's NPI active?
- Yes — Michael Sullivan's NPI (1598722381) is active in the NPPES registry as of the last update on 2020-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.