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DR. RACHEL M. BAUTISTA M.D.
NPI 1811917552
Allergy & Immunology in Hauppauge, NY

Active since July 19, 2006PECOS Enrolled
111 SMITHTOWN BYPASS, SUITE 219, HAUPPAUGE, NY 11788(631) 726-3355(631) 726-9751 Get Directions Write a Review

NPPES record last updated: May 11, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Rachel M. Bautista M.d. NPPES

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

DR. RACHEL M. BAUTISTA M.D. (NPI 1811917552) is an individual allergy & immunology provider in Hauppauge, New York, licensed in New York (152584-1) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811917552
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameDR. RACHEL M. BAUTISTACredential: M.D.
Location Address111 SMITHTOWN BYPASS, SUITE 219Hauppauge, NY 11788
Mailing Address68 Nassau Rd.Huntington, NY 11743 · (631) 423-5590 · Fax (631) 423-9137
Phone(631) 726-3355
Fax(631) 726-9751
Sole ProprietorYes
Enumeration DateJuly 19, 2006
Last NPPES UpdateMay 11, 2022
NPPES CertifiedMay 11, 2022
✔ NPI 1811917552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in NY · 152584-1
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
111 SMITHTOWN BYPASS, Hauppauge, NY 11788
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Rachel M. Bautista 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 Reassignment

Medicare enrollment records show Rachel Bautista reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Asthma & Allergy Medical Care PC
12 mi
Allergy & Immunology
68 NASSAU RD
Huntington, NY 11743
  • Reassigned Medicare billing, New York enrollment
  • 4 clinicians in this Medicare group
NPI 1801982236 (631) 423-5590

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

Areas of Expertise CMS Part B claims 4

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.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
1,370 services34 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
531 services41 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
66 services43 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
16 services16 patients

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.

MS. MERYL LAUREN RINELLI MS LMHC
Counselor (Mental Health)
111 SMITHTOWN BYPASS, SUITE 115
HAUPPAUGE, NY 11788
Suffolk County (631) 724-7152
EATING DISORDER ASSOCIATES
Counselor
111 SMITHTOWN BYPASS, SUITE 115
HAUPPAUGE, NY 11788
Suffolk County (631) 724-7152
DR. JOHN EUGENE POTENTE D.M.D.
Dentist (General Practice)
111 SMITHTOWN BYPASS
HAUPPAUGE, NY 11788
Suffolk County (631) 361-2102
MS. DOLORES RIORDAN LCSW
Social Worker (Clinical)
111 SMITHTOWN BYPASS, SUITE124
HAUPPAUGE, NY 11788
Suffolk County (631) 366-3268
FAMILY DENTAL CARE LLP
Dentist
111 SMITHTOWN BYPASS, SUITE 203
HAUPPAUGE, NY 11788
Suffolk County (631) 265-6262
MRS. SUSAN BRITT ESPOSITO LOMBARDO RD CDN
Dietitian, Registered
111 SMITHTOWN BYPASS
HAUPPAUGE, NY 11788
Suffolk County (631) 724-7152
PEACE OF MIND MENTAL HEALTH COUNSELING, P.C.
Counselor (Mental Health)
111 SMITHTOWN BYPASS, SUITE 115
HAUPPAUGE, NY 11788
Suffolk County (631) 588-4670
MS. SUSAN O'KEEFFE ELLIS LCSW-R
Social Worker (Clinical)
111 SMITHTOWN BYPASS, SUITE 108
HAUPPAUGE, NY 11788
Suffolk County (516) 996-3892

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 Rachel Bautista's NPI number?

The NPI number for Rachel Bautista is 1811917552. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is Rachel Bautista located?

Rachel Bautista practices at 111 Smithtown Bypass Suite 219, Hauppauge, NY 11788. The listed phone number is (631) 726-3355.

What is Rachel Bautista's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Rachel Bautista enrolled in Medicare?

Yes. Rachel Bautista is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rachel Bautista's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Bautista reassigns Medicare benefits to Asthma & Allergy Medical Care PC (Huntington, NY). The 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 Rachel Bautista'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 Rachel Bautista was last updated on May 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.