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Edit this profileAt a glance
- 22 S Greene St, Baltimore, MD 21201
About Dr. Bonyun
Marissa E. Bonyun, MD, MED, FRCSC practices orthopaedic adult reconstructive surgery in Baltimore, MD. Marissa is a 2013 graduate of University of Toronto, Faculty of Medicine. Medicare claims data shows Marissa provided 178 services to 159 patients. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. The provider's National Provider Identifier (NPI) is 1790338341.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 328-6280
- Email not available
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Practice Locations
22 S GREENE ST
Baltimore, MD 21201
Procedures Most Often Billed to Medicare
178 services · 159 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement | Procedure | 27236 |
16 | More often than most peers in Orthopaedic Adult Reconstructive… |
| Treatment of broken neck of thigh bone with bone implant | Procedure | 27245 |
13 | As often as other peers in Orthopaedic Adult Reconstructive… |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
59 | More often than most peers in Orthopaedic Adult Reconstructive… |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
27 | Less often than most peers in Orthopaedic Adult Reconstructive… |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
22 | As often as other peers in Orthopaedic Adult Reconstructive… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
21 | Less often than most peers in Orthopaedic Adult Reconstructive… |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
20 | As often as other peers in Orthopaedic Adult Reconstructive… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopaedic adult reconstructive surgeons in Baltimore 8
Same specialty, same city.
Class of 2013 at University of Toronto, Faculty of Medicine 4
Providers who graduated from the same medical school in the same year.
More connections — 2 related providers in 1 group
Also performs Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement 2
Providers in MD who bill this service to Medicare most often.
Common questions
What is Dr. Bonyun's specialty?
Dr. Bonyun is an orthopaedic adult reconstructive surgeon in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Adult Reconstructive Surgery”.
NPI registry
Where can I find Dr. Bonyun?
Dr. Bonyun is listed at 22 S Greene St, Baltimore, MD 21201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Bonyun?
The number on file is (410) 328-6280. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Bonyun?
Dr. Bonyun's National Provider Identifier is 1790338341. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Bonyun's medical education?
Dr. Bonyun attended University of Toronto, Faculty of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Bonyun have?
Dr. Bonyun has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Bonyun known for?
According to Medicare billing data, Dr. Bonyun performs procedures including treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement and treatment of broken neck of thigh bone with bone implant, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Bonyun's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Bonyun. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.