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CYNTHIA SHIM DO
NPI 1912562232
Internal Medicine in Apo, AP

Active since May 02, 2019PECOS Enrolled
UNIT #15245; BLDG 3031, APO, AP 96271(315) 737-1147 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 29, 2026, Apr 22, 2026, Aug 6, 2025 and 2 more (5 updates tracked since 2019).

About Cynthia Shim Do NPPES

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

CYNTHIA SHIM DO (NPI 1912562232) is an individual internal medicine provider in Apo, AP, licensed in New York (315169-01) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Bayonne.

NPPES Registry Identity

NPI1912562232
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCYNTHIA SHIMCredential: DO
Location AddressUNIT #15245; BLDG 3031Apo, AP 96271-5245
Mailing AddressUnit #15245; Bldg 3031Apo, AP 96271
Phone(315) 737-1147
Sole ProprietorNo
Enumeration DateMay 2, 2019
Last NPPES UpdateApril 29, 20265 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1912562232 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 315169-01
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedGeneral PracticeTaxonomy 208D00000X · License 25MB11293200 (NJ)
Also ListedHospitalistTaxonomy 208M00000X · License MTL-2024-032 (GU)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

Secondary Practice Location 1

Location 129 E 29th StBayonne, NJ 07002-4654 · Phone (201) 858-6594

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cynthia Shim Do 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 Reassignments

4

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

Central Suffolk Hospital
Hospitalist
1300 ROANOKE AVE
Riverhead, NY 11901
  • Reassigned Medicare billing, New York enrollment
  • 134 clinicians in this Medicare group
NPI 1043402050 (631) 548-6116
Cogent Medical Care PC
Internal Medicine
101 HOSPITAL RD
East Patchogue, NY 11772
  • Reassigned Medicare billing, New York enrollment
  • 640 clinicians in this Medicare group
NPI 1912941238 (631) 687-4131
Guam Healthcare Development Incorporated
Clinic/Center
133 ROUTE 3
Dededo, GU 96929
  • Reassigned Medicare billing, Guam enrollment
  • 432 clinicians in this Medicare group
NPI 1326447939 (671) 645-5500
Hospitalist Medicine Physicians Of New York, PLLC
Emergency Medicine
2475 SAINT RAYMONDS AVE
Bronx, NY 10461
  • Reassigned Medicare billing, New York enrollment
  • 244 clinicians in this Medicare group
NPI 1205944329 (718) 920-8543

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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
328 services197 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
308 services190 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
166 services165 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
106 services105 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 services31 patients

Other Providers at the Same Location NPPES 4

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

JOSHUA ALTON AKERS DMD
Dentist (Periodontics)
UNIT #15245; BLDG 3031
APO, AP 96271
(315) 737-9281
CHRISTOPHER YECHAN JOE
Social Worker (Clinical)
UNIT #15245; BLDG 3031
APO, AP 96271
(315) 737-1857
DR. SO HYUN LIM DMD
Dentist
UNIT #15245; BLDG 3031
APO, AP 96271
(315) 737-9167
CRYSTAL L HORIUCHI RN
Case Manager/Care Coordinator
UNIT #15245; BLDG 3031
APO, AP 96271
(050) 337-1411

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 Cynthia Shim's NPI number?

The NPI number for Cynthia Shim is 1912562232. It was assigned to this individual provider in the NPPES registry on May 2, 2019.

Where is Cynthia Shim located?

Cynthia Shim practices at Unit #15245; Bldg 3031, Apo, AP 96271. The listed phone number is (315) 737-1147.

What is Cynthia Shim's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Cynthia Shim enrolled in Medicare?

Yes. Cynthia Shim is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Cynthia Shim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Shim reassigns Medicare benefits to 4 organizations: Central Suffolk Hospital (Riverhead, NY), Cogent Medical Care PC (East Patchogue, NY), Guam Healthcare Development Incorporated (Dededo, GU) and Hospitalist Medicine Physicians Of New York, PLLC (Bronx, 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 Cynthia Shim'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 Cynthia Shim was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.