ISSA TEW LO CRNP
NPI 1013546100
Nurse Practitioner - Acute Care in Frederick, MD
About Issa Tew Lo Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISSA TEW LO CRNP (NPI 1013546100) is an individual acute care provider in Frederick, Maryland, licensed in Maryland (R182467) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
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
Issa Tew Lo Crnp 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.
Medicare Billing Reassignments
4Medicare enrollment records show Issa Lo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Frederick, MD 21701
- Reassigned Medicare billing, Maryland enrollment
- 13 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, District of Columbia enrollment
- 16 clinicians in this Medicare group
Elkton, MD 21921
- Reassigned Medicare billing, District of Columbia enrollment
- 347 clinicians in this Medicare group
Naperville, IL 60563
- Reassigned Medicare billing, Connecticut, District of Columbia, Maryland, Pennsylvania and Virginia enrollments
- 100 clinicians in this Medicare group
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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREDERICK, MD 21701
FREDERICK, MD 21701
FREDERICK, MD 21701
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 Issa Lo's NPI number?
The NPI number for Issa Lo is 1013546100. It was assigned to this individual provider in the NPPES registry on April 2, 2020.
Where is Issa Lo located?
Issa Lo practices at 814 Toll House Ave, Frederick, MD 21701. The listed phone number is (301) 662-8310.
What is Issa Lo's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Issa Lo enrolled in Medicare?
Yes. Issa Lo 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 Issa Lo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Issa Lo reassigns Medicare benefits to 4 organizations: Sibte A. Kazmi MD LLC (Frederick, MD), Mep Observation Services LLC (Rockville, MD), Usacs Integrated Acute Care Services Of Maryland, LLC (Elkton, MD) and Post Acute Specialists, LLC (Naperville, IL). 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 Issa Lo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Issa Lo accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Issa Lo 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.
When was this NPI record last updated?
The NPPES record for Issa Lo was last updated on December 6, 2021. 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.
# Issa Tew Lo, CRNP · NPI 1013546100
Acute Care physician in Frederick, Maryland. Individual provider, active in the CMS NPPES registry since April 2, 2020.
## Identity
- **NPI:** 1013546100 (Entity type: Individual)
- **Enumerated:** April 2, 2020
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R182467 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 814 TOLL HOUSE AVE, Frederick, MD 21701-4519
- **Phone:** (301) 662-8310
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Sibte A. Kazmi MD LLC (NPI 1265530844, Frederick, MD); Mep Observation Services LLC (NPI 1740021625, Rockville, MD); Usacs Integrated Acute Care Services Of Maryland, LLC (NPI 1922598929, Elkton, MD); Post Acute Specialists, LLC (NPI 1114441565, Naperville, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** December 6, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1013546100) · Data from the CMS NPPES public registry.