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Edit this profileAt a glance
- 8901 Rockville Pike, Building 1, 19Th Floor, Room 19122, Bethesda, MD 20889
About Dr. Greenwald
John Greenwald, M.D. is listed as a student in an organized health care education program in Bethesda, MD. According to Medicare claims data, John cared for 246 Medicare patients across 389 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, hospital discharge day management, more than 30 minutes, and subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes. NPI 1437560554 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (301) 319-8278
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
8901 ROCKVILLE PIKE BUILDING 1, 19TH FLOOR, ROOM 19122
Bethesda, MD 20889
Procedures Most Often Billed to Medicare
389 services · 246 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
187 | More often than most peers in Student in training |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
46 | As often as other peers in Student in training |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
44 | As often as other peers in Student in training |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
33 | As often as other peers in Student in training |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
22 | Less often than most peers in Student in training |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
22 | As often as other peers in Student in training |
| Advance care planning, first 30 minutes | Office visit | 99497 |
21 | As often as other peers in Student in training |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
14 | Less often than most peers in Student in training |
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.
Other medical trainees at this location 8
Same specialty, same street address — most likely the same department or group.
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.
Common questions
What does John Greenwald specialize in?
John Greenwald is a medical trainee in Bethesda, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.
NPI registry
Where is John Greenwald located?
John Greenwald is listed at 8901 Rockville Pike Building 1, 19Th Floor, Room 19122, Bethesda, MD 20889. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John Greenwald's phone number?
The number on file is (301) 319-8278. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Greenwald's NPI number?
John Greenwald's National Provider Identifier is 1437560554. 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
How long has John Greenwald been practicing?
John Greenwald has 12+ years experience. Registered with an NPI since 2014. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does John Greenwald do most often?
According to Medicare billing data, John Greenwald the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John Greenwald confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Greenwald. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.