Physician Profile
Unclaimed ProfileAbout CAO
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Education & Training
Areas of Expertise
Common questions
What is Dr. Cao's specialty?
Dr. Cao is an internal medicine in Baltimore, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Cao?
Dr. Cao is listed at 22 S GREENE ST, DEPT OF RADIOLOGY, 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. Cao?
The number on file is (410) 328-3477. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Cao?
Dr. Cao's National Provider Identifier is 1396072575. 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. Cao's medical education?
Dr. Cao attended Other, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Cao have?
Dr. Cao has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Cao known for?
According to Medicare billing data, Dr. Cao provides treatments such as influenza vaccine split virus, preservative free and administration of vaccine, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Cao's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Cao. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (410) 328-3477
- Email not available
Practice Locations
22 S GREENE ST, DEPT OF RADIOLOGY
Baltimore, MD 21201
Procedures Most Often Billed to Medicare
10,464 services · 2,033 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
229 |
| Administration of vaccine | Treatment | 90471 |
13 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
8,734 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
467 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
285 |
| Administration of influenza virus vaccine | Billing code | G0008 |
231 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
214 |
| Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | Billing code | G0438 |
129 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
125 |
| Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment | Billing code | G0402 |
37 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 29 related providers in 4 groups
Other internal medicines in Baltimore 6
Same specialty, same city.
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine split virus, preservative free 8
Providers in MD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.