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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MICHAEL R. HAINSTOCK M.D.
NPI 1144547449
Pediatrics - Pediatric Cardiology in Charlottesville, VA

Active since April 26, 2010PECOS Enrolled
1204 W MAIN ST, CHARLOTTESVILLE, VA 22903(434) 924-0123(434) 243-3300 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 29, 2026, Aug 7, 2019 (2 updates tracked since 2019).

About Michael R. Hainstock M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL R. HAINSTOCK M.D. (NPI 1144547449) is an individual pediatric cardiology provider in Charlottesville, Virginia, licensed in Virginia (0101252220) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144547449
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameMICHAEL R. HAINSTOCKCredential: M.D.
Location Address1204 W MAIN STCharlottesville, VA 22903-2824
Mailing AddressPo Box 749112Atlanta, GA 30374-9112
Phone(434) 924-0123
Fax(434) 243-3300
Sole ProprietorNo
Enumeration DateApril 26, 2010
Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2026
✔ NPI 1144547449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in VA · 0101252220
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
1204 W MAIN ST, Charlottesville, VA 22903
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael R. Hainstock M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Hainstock reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Virginia Physicians Group
1.1 mi
Neuromusculoskeletal Medicine, Sports Medicine
4105 LEWIS AND CLARK DR
Charlottesville, VA 22911
  • Reassigned Medicare billing, Virginia enrollment
  • 2,820 clinicians in this Medicare group
NPI 1033138250 (434) 295-1000
Mcv Associated Physicians
68 mi
Anesthesiology
1250 E MARSHALL ST, MAIN 1-214, BOX 980510
Richmond, VA 23298
  • Reassigned Medicare billing, Virginia enrollment
  • 2,481 clinicians in this Medicare group
NPI 1710959457 (804) 828-8707

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HEATHER STEVENS SPADER MD
Neurological Surgery
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 243-5749
DR. ASMA SHAHID HABIB M.D.
Pediatrics (Pediatric Cardiology)
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-9119
JENNIFER MOORE ANDREWS D.O.
Pediatrics
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-0123
WILLIAM G. WILSON M.D.
Medical Genetics (Clinical Genetics (M.D.))
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-0123
CHRISTIAN A. CHISHOLM MD
Obstetrics & Gynecology
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-2500
LINDA A. WAGGONER FOUNTAIN MD
Pediatrics (Pediatric Infectious Diseases)
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-0123
ANNE C BUTZ LCSW
Social Worker (Clinical)
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-5321
KEITH R. BACHMANN M.D.
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
1204 W MAIN ST
CHARLOTTESVILLE, VA 22903
Charlottesville City (434) 924-2301

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Hainstock's NPI number?

The NPI number for Michael Hainstock is 1144547449. It was assigned to this individual provider in the NPPES registry on April 26, 2010.

Where is Michael Hainstock located?

Michael Hainstock practices at 1204 W Main St, Charlottesville, VA 22903. The listed phone number is (434) 924-0123.

What is Michael Hainstock's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Michael Hainstock enrolled in Medicare?

Yes. Michael Hainstock is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Hainstock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Hainstock reassigns Medicare benefits to 2 organizations: University Of Virginia Physicians Group (Charlottesville, VA) and Mcv Associated Physicians (Richmond, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Hainstock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Hainstock accept?

Health plans from Oscar Health list Michael Hainstock as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Hainstock was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.