John Michael Granger, M.D.
Infectious Disease Internal Medicine
John Michael Granger is an Infectious Disease Internal Medicine specialist based in Lancaster, PA with over 23 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
John Michael Granger, M.D. has been part of the Lancaster medical community since 2006 in group practice. He graduated from Medical College of Ohio in 2003 and has 23+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and kidney disease (per CMS claims data).
At a glance
- Uses generic medications more than 83% of reporting doctors in Pennsylvania
- Virtual visits available — no app or travel required
Older · 5444dNPPES updated 2011-06-28 · verify NPI on CMS · Verify license at Pennsylvania State Board of Medicine
Contact & Location
Practice Location
2106 Harrisburg Pike Suite 301, Lancaster, PA 17604
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better93.3%
Pennsylvania avg: 82.8 · US avg: 82.8
✓ Higher than most doctors nationally(+10.5 pts)
Better than 83% of reporting doctors in PennsylvaniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
331
Unique beneficiaries
Standard volumePrescription Recipients
203
Patients prescribed
Prescriptions Written
540
Total claims
Total Medicare drug cost: $104k
Percentile rankings compared against 3,764 reporting peers in Pennsylvania.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Chronic Kidney Disease.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+30%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+11%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+18%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+16%) — a focus area for this doctor
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↑ More patients than average (+16%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2003
Medical College of Ohio
23 years in practice
Experienced
Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.
Taxonomy: 207RI0200X
Education & Training
Medical College of Ohio (Class of 2003)
Virtual Infectious Disease Care With John Michael Granger
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Michael Granger for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Lancaster required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about John Michael Granger
NPI records show Dr. Granger as active with telehealth listed in Lancaster, PA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (717) 544-3517.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact John Michael Granger
Practice Location
2106 Harrisburg Pike Suite 301, Lancaster, PA 17604
Mailing Address
2106 Harrisburg Pike Suite 301, Lancaster, PA 17604
This is a provider directory. Contact the office directly to schedule appointments.
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