Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KAREN PAK NP
NPI 1508610676
Nurse Practitioner in Boston, MA

Q: What is Karen Pak's NPI number?

The NPI number for Karen Pak is 1508610676. It was assigned to this individual provider in the NPPES registry on April 15, 2024.

Q: What is Karen Pak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Karen Pak was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.

Active since April 15, 2024PECOS Enrolled

450 BROOKLINE AVE, BOSTON, MA 02215(617) 632-2140 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 29, 2026, May 11, 2026, Oct 11, 2024 and 2 more (5 updates tracked since 2024).

On this page

About Karen Pak Np NPPES

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

KAREN PAK NP (NPI 1508610676) is an individual nurse practitioner in Boston, Massachusetts, licensed in Minnesota (11676) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1508610676

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameKAREN PAKCredential: NP

Location Address450 BROOKLINE AVEBoston, MA 02215-5450

Mailing Address450 Brookline AveBoston, MA 02215-5450 · (617) 632-2140 · Fax (617) 632-6624

Phone(617) 632-2140

Sole ProprietorNo

Medical School CMSOtherGraduated 2024

Enumeration DateApril 15, 2024

Last NPPES UpdateJuly 29, 20265 updates tracked since enumeration

NPPES CertifiedJuly 29, 2026

✔ NPI 1508610676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in MN · 11676

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

450 BROOKLINE AVE, Boston, MA 02215

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen Pak Np 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 ID4981142270

PECOS Enrollment IDI20240819000264

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.

Areas of Expertise CMS Part B claims

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.

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.

16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

Mayo Clinic Hospital Rochester

Acute Care Hospitals · Rochester, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number240010

Location1216 Second Street SouthwestRochester, MN 55902 · Olmsted County

Emergency services Birthing friendly

Mayo Clinic Health System In Red Wing

Acute Care Hospitals · Red Wing, MN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240018

Location701 Hewitt BoulevardRed Wing, MN 55066 · Goodhue County

Emergency services Birthing friendly

Mayo Clinic Health System - Mankato

Acute Care Hospitals · Mankato, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240093

Location1025 Marsh StreetMankato, MN 56001 · Blue Earth County

Emergency services Birthing friendly

Mayo Clinic Health System - Lake City

Critical Access Hospitals · Lake City, MN

OwnershipVoluntary non-profit - Private

CMS Certification Number241338

Location500 West Grant StreetLake City, MN 55041 · Wabasha County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

PRABHSIMRANJOT SINGH MD

Internal Medicine (Hematology & Oncology)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 582-7956

SHAWN MAGUIRE PA-C

Physician Assistant

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 582-8487

KARINA FRANCA

Genetic Counselor, MS

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (857) 215-2285

DR. SUZANNE JAQUETH FORREST M.D.

Pediatrics (Pediatric Hematology-Oncology)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-3270

LAUREN KIRITSY MSW, LCSW

Counselor (Mental Health)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (857) 215-3448

OFIR WOLAJ MD

Internal Medicine (Hematology & Oncology)

450 BROOKLINE AVE, DANA 2058
BOSTON, MA 02215

Suffolk County (617) 632-6139

JASON BATALHA AGPCNP-BC

Nurse Practitioner

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-6140

FATIMA EMRAN AMIR MS, LGC

Genetic Counselor, MS

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-3729

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 Karen Pak's NPI number?

The NPI number for Karen Pak is 1508610676. It was assigned to this individual provider in the NPPES registry on April 15, 2024.

Where is Karen Pak located?

Karen Pak practices at 450 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 632-2140.

What is Karen Pak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Karen Pak enrolled in Medicare?

Yes. Karen Pak 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.

What insurance does Karen Pak accept?

Health plans from Medica list Karen Pak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Karen Pak affiliated with any hospitals?

According to CMS data, Karen Pak is affiliated with Mayo Clinic Hospital Rochester, Mayo Clinic Health System In Red Wing, Mayo Clinic Health System - Mankato and Mayo Clinic Health System - Lake City.

When was this NPI record last updated?

The NPPES record for Karen Pak was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.