MAREEN E. THOMAS MD
NPI 1972781276
Pediatrics - Pediatric Endocrinology in Richmond, VA

Q: What is Mareen Thomas's NPI number?

The NPI number for Mareen Thomas is 1972781276. It was assigned to this individual provider in the NPPES registry on February 8, 2008.

Q: What is Mareen Thomas's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Q: When was this NPI record last updated?

The NPPES record for Mareen Thomas was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.

Active since February 08, 2008PECOS Enrolled

2305 N PARHAM RD STE 1, RICHMOND, VA 23229(804) 527-4712(804) 527-4728 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 17, 2018, Jun 28, 2017 (2 updates tracked since 2017).

On this page

About Mareen E. Thomas Md NPPES

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

MAREEN E. THOMAS MD (NPI 1972781276) is an individual pediatric endocrinology provider in Richmond, Virginia, licensed in Virginia (0101256556) and active in the NPI registry since February 2008. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1972781276

Entity TypeIndividualFemale

Primary Taxonomy2080P0205X

Provider Legal NameMAREEN E. THOMASCredential: MD

Location Address2305 N PARHAM RD STE 1Richmond, VA 23229-3156

Mailing AddressPo Box 91734Richmond, VA 23291-1734 · (804) 358-6100 · Fax (804) 342-7619

Phone(804) 527-4712

Fax(804) 527-4728

Sole ProprietorNo

Enumeration DateFebruary 8, 2008

Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration

✔ NPI 1972781276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0205X

License✔ Licensed in VA · 0101256556

Definition

A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.

Also ListedPediatricsTaxonomy 208000000X · License 0101256556 (VA)

2305 N PARHAM RD STE 1, Richmond, VA 23229

Open in Google Maps ↗

Secondary Practice Locations 2

Location 11000 E Broad StRichmond, VA 23219-1930 · Phone (804) 628-5690 · Fax (804) 628-5683

Location 21250 E Marshall StRichmond, VA 23298-5051 · Phone (804) 527-4712 · Fax (804) 527-4728

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)

Mareen E. Thomas Md 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

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

Mcv Associated Physicians

8.9 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

Children's Hospital

95 mi

Pediatrics

111 MICHIGAN AVE NW
Washington, DC 20010

Reassigned Medicare billing, District of Columbia enrollment
1,417 clinicians in this Medicare group

NPI 1780800128 (202) 476-5000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 23229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$129.04 typical visit price

range $56.19 – $170.30

Typical copayment $32.26 (range $14.04 – $42.57)

Most-billed visit code 99204

Established Patient

$99.13 typical visit price

range $18.07 – $138.91

Typical copayment $24.78 (range $4.51 – $34.72)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

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

LINDSEY MCKAIG RD

Dietitian, Registered

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 346-1010

CAITLIN AUTIO RN

Registered Nurse (Pediatrics)

2305 N PARHAM RD STE 1
HENRICO, VA 23229

Henrico County (804) 527-4714

MS. PRISCILLA WYATT POWELL PHD

Psychologist (Clinical)

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 527-4716

DR. ALYSSA BUTTON PHD

Psychologist (Clinical)

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 828-4758

BRYCE ALLEN NELSON MD

Pediatrics (Pediatric Endocrinology)

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 828-2467

ARTI P. SHAH M.B.B.S.

Pediatrics (Pediatric Endocrinology)

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 828-2467

KAITLYN BAYLESS HAYNIE MPH, RDN

Dietitian, Registered (Nutrition, Pediatric)

2305 N PARHAM RD STE 1
HENRICO, VA 23229

Henrico County (804) 828-2467

SARAH GAMMONS HENSLEY M.D.

Pediatrics

2305 N PARHAM RD STE 1
RICHMOND, VA 23229

Henrico County (804) 828-2467

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 Mareen Thomas's NPI number?

The NPI number for Mareen Thomas is 1972781276. It was assigned to this individual provider in the NPPES registry on February 8, 2008.

Where is Mareen Thomas located?

Mareen Thomas practices at 2305 N Parham Rd Ste 1, Richmond, VA 23229. The listed phone number is (804) 527-4712.

What is Mareen Thomas's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Mareen Thomas enrolled in Medicare?

Yes. Mareen Thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mareen Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mareen Thomas reassigns Medicare benefits to 2 organizations: Mcv Associated Physicians (Richmond, VA) and Children's Hospital (Washington, DC). 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 Mareen Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mareen Thomas accept?

Health plans from Oscar Health list Mareen Thomas 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 Mareen Thomas was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.