Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John E Greer, MD, PHD

Individual provider Neurological Surgery Physician · NPI 1790122646

John E Greer, MD, PHD practises Neurosurgery in Richmond, Virginia. Graduated from Virginia Commonwealth University, School of Medicine in 2013, 13 years ago. Practices with Mcv Associated Physicians, a 1,767-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Virginia.

Years since qualifying
13
Trained at
Virginia Commonwealth University, School of Medicine
Licensed in
VA
In the registry since
2013
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1250 E Marshall St Ns: Neurosurgery Clinic
Richmond, VA 23298-5051
Phone: (804) 828-2437
Fax: (804) 828-1953
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 0101268559 (VA)

Record details

NPI number1790122646
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 2, 2013
Last updated in NPPESSeptember 13, 2021
Certification dateSeptember 2, 2020

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolVIRGINIA COMMONWEALTH UNIVERSITY, SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice McV Associated Physicians — 1767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Spinal fusion 24 times · 40th percentile
Laminectomy or laminotomy (partial removal of spine bones) 1–10 times
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients78
Services billed 164 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Mcv Associated Physicians

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1767 clinicians in the practice; 12 are shown here.

Other providers in Richmond