Physician Profile
Peter C Gregg, MD
Unclaimed ProfileAbout Dr. Gregg
Peter C Gregg, MD practices internal medicine in Baltimore, MD. Peter is a 2007 graduate of Johns Hopkins University School of Medicine. According to Medicare claims data, Peter cared for 342 Medicare patients across 585 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (410) 327-5100
- Email not available
Practice Locations
1235 E MONUMENT ST
Baltimore, MD 21202
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
585 services · 342 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
69 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
32 |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
22 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
20 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
18 |
| Administration of vaccine | Treatment | 90471 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
275 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
71 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
38 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
25 |
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 internal medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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 — 32 related providers in 4 groups
Other internal medicines in Baltimore 8
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Johns Hopkins University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MD who bill this service to Medicare most often.
Common questions
What does Dr. Gregg specialize in?
Dr. Gregg 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 is Dr. Gregg located?
Dr. Gregg is listed at 1235 E MONUMENT ST, Baltimore, MD 21202. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gregg's phone number?
The number on file is (410) 327-5100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Gregg's NPI number?
Dr. Gregg's National Provider Identifier is 1558564294. 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
Where did Dr. Gregg go to medical school?
Dr. Gregg attended Johns Hopkins University School of Medicine, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Gregg been practicing?
Dr. Gregg has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gregg do most often?
According to Medicare billing data, Dr. Gregg performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as admn sarscov2 vacc 1 dose and sarscv2 vac 30mcg trs-suc im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Gregg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gregg. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.