Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Loh

Individual provider Internal Medicine Physician · NPI 1306852827

John Loh is an Internal Medicine in Baltimore, Maryland. Graduated from Michigan State University College of Human Medicine in 1984, 42 years ago. Practices with Mace Medical LLC, a 15-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
42
Trained at
Michigan State University College of Human Medicine
Licensed in
MD
In the registry since
2006

Practice location Address checks out

1124 Mace Ave
Baltimore, MD 21221-3315
Phone: (410) 391-6996
Fax: (410) 687-6877
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence H0035593 (MD)

Record details

NPI number1306852827
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 1, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1984 (42 years in practice)
Group practice Mace Medical Llc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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