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Aaron Ryoo, MD

NPI 1023549912 · Emergency Medicine Physician · Brooklyn, NY

Provider details

NPI number: 1023549912
Entity type: Individual
Primary specialty: Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000XLicense 304545-01 (NY)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(64/100 index)

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
83% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
397 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)
Emergency Department Visit With High Level of Medical Decision Making99285	171	$195
Emergency Department Visit With Moderate Level of Medical Decision Making99284	121	$136
Critical Care, First 30-74 Minutes99291	54	$237
Emergency Department Visit With Low Level of Medical Decision Making99283	27	$80
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	13	$192
Ultrasound of Heart, Follow-Up93308	11	$27

Typical Medicare-allowed amounts for these services range $27–$237 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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

506 6th St

Brooklyn, NY 11215-3609

Phone: (718) 780-5040

Street-level locationGet directions

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Mailing address