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ISAAC OKAI
NPI 1841162765
Nurse Practitioner - Psychiatric/Mental Health in Worcester, MA

Active since September 19, 2025PECOS EnrolledAccepts Medicare Assignment
309 BELMONT ST, WORCESTER, MA 01604(508) 368-4000 Get Directions Write a Review

NPPES record last updated: September 19, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Isaac Okai NPPES

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

ISAAC OKAI (NPI 1841162765) is an individual psychiatric/mental health provider in Worcester, Massachusetts, licensed in Massachusetts (RN230629) and active in the NPI registry since September 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1841162765
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameISAAC OKAI
Location Address309 BELMONT STWorcester, MA 01604-1059
Mailing Address309 Belmont StWorcester, MA 01604-1059 · (508) 368-4000
Phone(508) 368-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 19, 2025
NPPES CertifiedSeptember 19, 2025
✔ NPI 1841162765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN230629
309 BELMONT ST, Worcester, MA 01604
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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 and accepts Medicare assignment

Isaac Okai 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 ID3971097676
PECOS Enrollment IDI20251210002369
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 Isaac Okai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Commonwealth Of Massachusetts
Same address
Psychiatry
309 BELMONT ST
Worcester, MA 01604
  • Reassigned Medicare billing, Massachusetts enrollment
  • 59 clinicians in this Medicare group
NPI 1275680456 (508) 368-4000
Valera Medical, P.C.
157 mi
Psychiatry
134 N 4TH ST
Brooklyn, NY 11249
  • Reassigned Medicare billing, Massachusetts enrollment
  • Medicare enrollment name: Valera Medical PC
  • 34 clinicians in this Medicare group
NPI 1437782349 (646) 450-7748

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 01604 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

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.

CRYSTALL HOLLENKAMP LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-0667
DANA EVE PALIT MSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-0529
DANA LYNN MCMANNUS LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-3328
PIOTR KARWOWSKI D.M.D.
Dentist
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (847) 727-7661
MR. ADEMOLA SOLOMON OBELE PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 615-6001
EZINNE OBIJIAKU
Nurse Practitioner (Psychiatric/Mental Health)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (857) 312-9702
COLLEEN MARIE DOYLE LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-4000
MISS REGINA ELAINE AMORELLO LICSW
Social Worker (Clinical)
309 BELMONT ST
WORCESTER, MA 01604
Worcester County (508) 368-3795

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 Isaac Okai's NPI number?

The NPI number for Isaac Okai is 1841162765. It was assigned to this individual provider in the NPPES registry on September 19, 2025.

Where is Isaac Okai located?

Isaac Okai practices at 309 Belmont St, Worcester, MA 01604. The listed phone number is (508) 368-4000.

What is Isaac Okai's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Isaac Okai enrolled in Medicare?

Yes. Isaac Okai 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 Isaac Okai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isaac Okai reassigns Medicare benefits to 2 organizations: The Commonwealth Of Massachusetts (Worcester, MA) and Valera Medical, P.C. (Brooklyn, 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 Isaac Okai'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 Isaac Okai was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.