Michael Assayag, M.D.
NPI 1457726713 · Orthopaedic Surgery Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Assayag, M.D. is a Orthopaedic Surgery Physician provider in Baltimore, MD (NPI 1457726713).
Provider details
- NPI number
- 1457726713
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- P31906 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
233 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $95 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 32 | $116 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 25 | $133 |
| X-Ray of Thigh Bone, Minimum 2 Views73552 | 22 | $37 |
| X-Ray of Hip, 2-3 Views73502 | 21 | $48 |
| Treatment of Broken Neck of Thigh Bone With Bone Implant27245 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$42,581 across 45 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
- 2015-12-11
- Last updated
- 2015-12-11
Frequently asked questions
- What is Michael Assayag's NPI number?
- Michael Assayag's National Provider Identifier (NPI) is 1457726713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Assayag's specialty?
- Michael Assayag is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Assayag located?
- Michael Assayag's practice location on file with NPPES is 2401 W Belvedere Ave, Baltimore, MD 21215-5216.
- What is Michael Assayag's phone number?
- The practice phone number listed in the NPPES registry for Michael Assayag is (410) 601-9000.
- Does Michael Assayag accept Medicare?
- Michael Assayag is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Assayag's NPI active?
- Yes — Michael Assayag's NPI (1457726713) is active in the NPPES registry as of the last update on 2015-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.