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MAISA ISMAIL ABDALLA M.D.
NPI 1669645222
Internal Medicine - Gastroenterology in Rochester, NY

Active since April 03, 2008PECOS EnrolledAccepts Medicare Assignment
95.52/100
CMS Quality Rating
601 ELMWOOD AVE, ROCHESTER, NY 14642(773) 968-4925 Get Directions Write a Review

NPPES record last updated: July 6, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 6, 2023, Nov 3, 2020, Jul 24, 2017 (3 updates tracked since 2017).

About Maisa Ismail Abdalla M.d. NPPES

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

MAISA ISMAIL ABDALLA M.D. (NPI 1669645222) is an individual gastroenterology provider in Rochester, New York, licensed in California (A140585) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with F F Thompson Hospital, and maintains a secondary practice location in Loma Linda.

NPPES Registry Identity

NPI1669645222
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameMAISA ISMAIL ABDALLACredential: M.D.
Location Address601 ELMWOOD AVERochester, NY 14642-0001
Mailing Address601 Elmwood AveRochester, NY 14642-0001 · (773) 968-4925
Phone(773) 968-4925
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateApril 3, 2008
Last NPPES UpdateJuly 6, 20233 updates tracked since enumeration
NPPES CertifiedNovember 3, 2020
✔ NPI 1669645222 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in CA · A140585✔ Licensed in NY · 307634
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A140585 (CA)
601 ELMWOOD AVE, Rochester, NY 14642
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Secondary Practice Location 1

Location 111234 Anderson St # Mc1556Loma Linda, CA 92354-2804 · Phone (909) 558-4905 ext. 82960 · Fax (909) 558-0274

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

Maisa Ismail Abdalla 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 ID2961670476
PECOS Enrollment IDI20201228000357
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

4

Medicare enrollment records show Maisa Abdalla reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastrointestinal Group
Same address
Gastroenterology
601 ELMWOOD AVE, BOX MED
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 71 clinicians in this Medicare group
NPI 1114977048 (585) 275-4711
University Of Rochester
Same address
General Acute Care Hospital
601 ELMWOOD AVE, BOX 684
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 1,624 clinicians in this Medicare group
NPI 1346285657 (585) 275-2100
Highland Hospital Of Rochester
1.2 mi
Internal Medicine
1000 SOUTH AVE
Rochester, NY 14620
  • Reassigned Medicare billing, New York enrollment
  • 303 clinicians in this Medicare group
NPI 1376820241 (585) 473-2200
Faculty Physicians And Surgeons Of Llusm
2,041 mi
Transplant Surgery
2020 WELLNESS WAY, STE 506
Las Vegas, NV 89106
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1124560214 (909) 558-3636

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 8

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.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
48 services44 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
35 services24 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services30 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
29 services29 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
20 services20 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

F F Thompson Hospital

Acute Care Hospitals · Canandaigua, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330074
Location350 Parrish StreetCanandaigua, NY 14424 · Ontario County
Emergency services Birthing friendly

Highland Hospital

Acute Care Hospitals · Rochester, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330164
Location1000 South AvenueRochester, NY 14617 · Monroe County
Emergency services Birthing friendly

Strong Memorial Hospital

Acute Care Hospitals · Rochester, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330285
Location601 Elmwood AveRochester, NY 14642 · Monroe County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14642 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
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

95.52/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.49
Promoting Interoperability100
Improvement Activities40
Cost76.25

Other Providers at the Same Location NPPES 20

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

CARIE E BRADT RPA-C
Physician Assistant
601 ELMWOOD AVE
ROCHESTER, NY 14642
Monroe County (585) 275-6070
DR. RITA DADIZ DO
Pediatrics (Neonatal-Perinatal Medicine)
601 ELMWOOD AVE, BOX 635
ROCHESTER, NY 14642
Monroe County (585) 275-7787
DR. SCOTT ROSS SCHIFFMAN M.D.
Radiology (Diagnostic Radiology)
601 ELMWOOD AVE, BOX 648
ROCHESTER, NY 14642
Monroe County (585) 275-1128
SARAH ANNE ROSSI FNP
Nurse Practitioner (Family)
601 ELMWOOD AVE, BOX 652
ROCHESTER, NY 14642
Monroe County (585) 279-5100
JIMENA CUBILLOS MD
Urology (Pediatric Urology)
601 ELMWOOD AVE, BOX 656
ROCHESTER, NY 14642
Monroe County (585) 275-3342
MRS. ANNE SCHERBERGER KEEFER RN NP
Nurse Practitioner (Adult Health)
601 ELMWOOD AVE, BOX 704
ROCHESTER, NY 14642
Monroe County (585) 275-5307
SCOTT OVERHOLT DDS
Student in an Organized Health Care Education/Training Program
601 ELMWOOD AVE, BOX 705
ROCHESTER, NY 14642
Monroe County (585) 275-7978
MS. SARAH L AVERILL MD
Radiology (Diagnostic Radiology)
601 ELMWOOD AVE
ROCHESTER, NY 14642
Monroe County (585) 275-2100

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 Maisa Abdalla's NPI number?

The NPI number for Maisa Abdalla is 1669645222. It was assigned to this individual provider in the NPPES registry on April 3, 2008.

Where is Maisa Abdalla located?

Maisa Abdalla practices at 601 Elmwood Ave, Rochester, NY 14642. The listed phone number is (773) 968-4925.

What is Maisa Abdalla's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Maisa Abdalla enrolled in Medicare?

Yes. Maisa Abdalla 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 Maisa Abdalla's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maisa Abdalla reassigns Medicare benefits to 4 organizations: Gastrointestinal Group (Rochester, NY), University Of Rochester (Rochester, NY), Highland Hospital Of Rochester (Rochester, NY) and Faculty Physicians And Surgeons Of Llusm (Las Vegas, NV). 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 Maisa Abdalla's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Maisa Abdalla affiliated with any hospitals?

According to CMS data, Maisa Abdalla is affiliated with F F Thompson Hospital, Highland Hospital and Strong Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Maisa Abdalla was last updated on July 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.