What is Etan Aber's NPI number?

Etan Aber's National Provider Identifier (NPI) is 1841753142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Etan Aber's specialty?

Etan Aber is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).

Where is Etan Aber located?

Etan Aber's practice location on file with NPPES is 8613 Route 29 Ste 101, Fairfax, VA 22031-2171.

What is Etan Aber's phone number?

The practice phone number listed in the NPPES registry for Etan Aber is (571) 350-8400.

Does Etan Aber accept Medicare?

Etan Aber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Etan Aber's NPI active?

Yes — Etan Aber's NPI (1841753142) is active in the NPPES registry as of the last update on 2026-03-23.

IndividualActiveAccepts Medicare

Etan Aber, MD, PHD

NPI 1841753142 · Hematology & Oncology Physician · Fairfax, VA

Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Etan Aber, MD, PHD is a Hematology & Oncology Physician provider in Fairfax, VA (NPI 1841753142).

Provider details

NPI number: 1841753142
Entity type: Individual
Primary specialty: Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
Credential: MD, PHD
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Hematology & Oncology PhysicianPrimary207RH0003XLicense 0101288403 (VA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
7 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
2 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

8613 Route 29 Ste 101

Fairfax, VA 22031-2171

Phone: (571) 350-8400

Fax: (703) 208-3108

Approximate (ZIP-level) locationGet directions

More VA providers

Mailing address

3040 Williams Dr Ste 100

Fairfax, VA 22031-4618

Additional practice locations (1)

8613 Route 29 Ste 200
Fairfax, VA 22031-2172
Phone: (571) 350-8400
Fax: (703) 208-3108

Enumerated: 2019-04-12
Last updated: 2026-03-23
Certified: 2026-03-23

Frequently asked questions

What is Etan Aber's NPI number?: Etan Aber's National Provider Identifier (NPI) is 1841753142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Etan Aber's specialty?: Etan Aber is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
Where is Etan Aber located?: Etan Aber's practice location on file with NPPES is 8613 Route 29 Ste 101, Fairfax, VA 22031-2171.
What is Etan Aber's phone number?: The practice phone number listed in the NPPES registry for Etan Aber is (571) 350-8400.
Does Etan Aber accept Medicare?: Etan Aber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Etan Aber's NPI active?: Yes — Etan Aber's NPI (1841753142) is active in the NPPES registry as of the last update on 2026-03-23.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.