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

Ronald D. Jeffreys, DO

Individual provider Internal Medicine Physician · NPI 1750347282

Ronald D. Jeffreys, DO practises Internal Medicine in Baltimore, Maryland. Graduated from Philadelphia College of Osteopathic Medicine in 1995, 31 years ago. Practices with Pinnacle Health Hospitalist Services LLC, a 179-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Maryland and Pennsylvania.

Years since qualifying
31
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
MD, PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

8800 Walther Blvd
Baltimore, MD 21234-9001
Phone: (410) 882-3240
Fax: (410) 661-5093
Show map & directions

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

Additional practice locations (4)

  • 7051 Rockledge Dr, Bethesda, MD 20817-1680 — (301) 272-9830
  • 711 Maiden Choice Ln, Catonsville, MD 21228-3632 — (410) 247-5602
  • 3110 Gracefield Rd, Silver Spring, MD 20904-1820 — (301) 572-8340
  • 1701 Innovation Dr, York, PA 17408-8815 — (717) 843-8623

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS023315 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence H0052365 (MD)

Record details

NPI number1750347282
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 24, 2006
Last updated in NPPESJuly 29, 2026
Certification dateJuly 29, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1995 (31 years in practice)
Group practice Pinnacle Health Hospitalist Services Llc — 179 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,043
Services billed 5,620 a service is one billed item, such as a visit, a test or a procedure
Average patient age84

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $21 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Pinnacle Health Hospitalist Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 179 clinicians in the practice; 12 are shown here.

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