MARIANA SYLVIA JOANNE MIDDELHOF M.D
NPI 1710293337
Pediatrics - Pediatric Gastroenterology in Fairfax, VA

Q: What is Mariana Middelhof's NPI number?

The NPI number for Mariana Middelhof is 1710293337. It was assigned to this individual provider in the NPPES registry on August 19, 2010.

Q: What is Mariana Middelhof's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Q: When was this NPI record last updated?

The NPPES record for Mariana Middelhof was last updated on April 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 August 19, 2010PECOS Enrolled

82.63/100

CMS Quality Rating

3023 HAMAKER CT STE 600, FAIRFAX, VA 22031(703) 839-8733(703) 839-8779 Get Directions Write a Review

NPPES record last updated: April 16, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 16, 2026, May 23, 2025, Aug 31, 2022 and 2 more (5 updates tracked since 2016).

On this page

About Mariana Sylvia Joanne Middelhof M.d NPPES

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

MARIANA SYLVIA JOANNE MIDDELHOF M.D (NPI 1710293337) is an individual pediatric gastroenterology provider in Fairfax, Virginia, licensed in Virginia (0101283490) and active in the NPI registry since August 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710293337

Entity TypeIndividualFemale

Primary Taxonomy2080P0206X

Provider Legal NameMARIANA SYLVIA JOANNE MIDDELHOFCredential: M.D

Location Address3023 HAMAKER CT STE 600Fairfax, VA 22031-2241

Mailing Address3023 Hamaker Ct Ste 600Fairfax, VA 22031-2241 · (703) 876-2788 · Fax (703) 839-8764

Phone(703) 839-8733

Fax(703) 839-8779

Sole ProprietorNo

Enumeration DateAugust 19, 2010

Last NPPES UpdateApril 16, 20265 updates tracked since enumeration

NPPES CertifiedApril 16, 2026

✔ NPI 1710293337 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0206X

Licenses✔ Licensed in VA · 0101283490✔ Licensed in FL · ME129529✔ Licensed in NY · 282433

Definition

A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.

Also ListedPediatricsTaxonomy 208000000X · License 0101283490 (VA)

3023 HAMAKER CT STE 600, Fairfax, VA 22031

Open in Google Maps ↗

Other Identifiers 1

OtherME129529FL · Fl Medical License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mariana Sylvia Joanne Middelhof 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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,440 services21 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

47 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22031 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.63/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

74.96

Promoting Interoperability

100

Improvement Activities

Cost

67.14

Other Providers at the Same Location NPPES 16

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

NEDA KASHANIAN D.T.

Dietitian, Registered