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CHARLOTTE ARONIN BIRNBAUM M.D.
NPI 1649680737
Dermatology in Plainview, NY

Active since April 29, 2014PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
1600 OLD COUNTRY RD, PLAINVIEW, NY 11803(516) 394-0030(516) 421-4604 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 14, 2026, Oct 28, 2019, Aug 29, 2018 and 1 more (4 updates tracked since 2016).

About Charlotte Aronin Birnbaum M.d. NPPES

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

CHARLOTTE ARONIN BIRNBAUM M.D. (NPI 1649680737) is an individual dermatology provider in Plainview, New York, licensed in New York (289467) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1649680737
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameCHARLOTTE ARONIN BIRNBAUMCredential: M.D.
Location Address1600 OLD COUNTRY RDPlainview, NY 11803-5013
Mailing Address1600 Old Country RdPlainview, NY 11803-5013 · (516) 394-0030 · Fax (516) 421-4604
Phone(516) 394-0030
Fax(516) 421-4604
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateApril 29, 2014
Last NPPES UpdateJanuary 14, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2026
✔ NPI 1649680737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in NY · 289467
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
1600 OLD COUNTRY RD, Plainview, NY 11803
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Other Names 1

Former Name (1)Charlotte Geller Aronin

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Charlotte Aronin Birnbaum M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911250014
PECOS Enrollment IDI20181018002400
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 Charlotte Birnbaum reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wesson Dermatology, PC
14 mi
Dermatology
1010 NORTHERN BLVD, SUITE 120
Great Neck, NY 11021
  • Reassigned Medicare billing, New York enrollment
  • 6 clinicians in this Medicare group
NPI 1346514411 (516) 829-0050
Optum Medical Care, P.C.
32 mi
Cardiovascular Disease
90 SOUTH BEDFORD RD, MT KISCO MEDICAL GROUP PC
Mount Kisco, NY 10549
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Optum Medical Care PC
  • 1,601 clinicians in this Medicare group
NPI 1982643003 (914) 241-1050

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 11803 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 3

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

JAISON JACOB JOHN DO
Internal Medicine (Cardiovascular Disease)
1600 OLD COUNTRY RD
PLAINVIEW, NY 11803
Nassau County (516) 433-3600
DR. NAYAAB BAKSHI DO
Internal Medicine (Rheumatology)
1600 OLD COUNTRY RD
PLAINVIEW, NY 11803
Nassau County (516) 622-6090
DR. SONIA SETHI MD, MBE
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1600 OLD COUNTRY RD
PLAINVIEW, NY 11803
Nassau County (516) 394-0030

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 Charlotte Birnbaum's NPI number?

The NPI number for Charlotte Birnbaum is 1649680737. It was assigned to this individual provider in the NPPES registry on April 29, 2014. The provider is also known as Charlotte Geller Aronin.

Where is Charlotte Birnbaum located?

Charlotte Birnbaum practices at 1600 Old Country Rd, Plainview, NY 11803. The listed phone number is (516) 394-0030.

What is Charlotte Birnbaum's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Charlotte Birnbaum enrolled in Medicare?

Yes. Charlotte Birnbaum is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Charlotte Birnbaum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charlotte Birnbaum reassigns Medicare benefits to 2 organizations: Wesson Dermatology, PC (Great Neck, NY) and Optum Medical Care, P.C. (Mount Kisco, NY). 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 Charlotte Birnbaum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charlotte Birnbaum was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.