Physician Profile
Unclaimed ProfileAbout PERILLI
Gretchen Perilli, MD practices internal medicine in Allentown, PA. Gretchen is a 2001 graduate of Jefferson Medical College of Thomas Jefferson University. Gretchen is also listed as specializing in endocrinology, diabetes & metabolism. Medicare claims data shows Gretchen provided 755 services to 437 patients.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (610) 402-6790
- Email not available
Practice Locations
1243 S CEDAR CREST BLVD SUITE 2800
Allentown, PA 18103
Procedures Most Often Billed to Medicare
755 services · 437 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
131 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
229 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
223 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
85 |
| 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 |
68 |
| Hemoglobin a1c level | Lab test | 83036 |
19 |
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 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 Allentown 8
Same specialty, same city.
Trained at Jefferson Medical College of Thomas Jefferson University 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Jefferson Medical College of Thomas Jefferson University 8
Providers who graduated from the same medical school in the same year.
Also performs Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 8
Providers in PA who bill this service to Medicare most often.
Common questions
What is Dr. Perilli's specialty?
Dr. Perilli is an internal medicine in Allentown, PA. 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. Perilli?
Dr. Perilli is listed at 1243 S CEDAR CREST BLVD SUITE 2800, Allentown, PA 18103. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Perilli?
The number on file is (610) 402-6790. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Perilli?
Dr. Perilli's National Provider Identifier is 1043306343. 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. Perilli's medical education?
Dr. Perilli attended Jefferson Medical College of Thomas Jefferson University, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Perilli have?
Dr. Perilli has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Perilli known for?
According to Medicare billing data, Dr. Perilli provides treatments such as continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Perilli's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Perilli. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.