1. Home
  2. Directory
  3. Massachusetts
  4. Cambridge
  5. Nurse Practitioner
  6. NPI Profile

KRYSTAL MERSHON FNP-BC
NPI 1700288388
Nurse Practitioner - Primary Care in Cambridge, MA

Active since September 25, 2014PECOS Enrolled
725 CONCORD AVE STE 3300, CAMBRIDGE, MA 02138(617) 864-8822 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Krystal Mershon Fnp-bc NPPES

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

KRYSTAL MERSHON FNP-BC (NPI 1700288388) is an individual primary care provider in Cambridge, Massachusetts, licensed in Massachusetts (RN2283506) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700288388
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameKRYSTAL MERSHONCredential: FNP-BC
Location Address725 CONCORD AVE STE 3300Cambridge, MA 02138-1055
Mailing Address3a Cathy RdBurlington, MA 01803-1242 · (617) 908-8089
Phone(617) 864-8822
Sole ProprietorNo
Enumeration DateSeptember 25, 2014
Last NPPES UpdateDecember 3, 2021
NPPES CertifiedNovember 29, 2021
✔ NPI 1700288388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
License✔ Licensed in MA · RN2283506
725 CONCORD AVE STE 3300, Cambridge, MA 02138
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Krystal Mershon Fnp-bc 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.

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.

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.
53 services51 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
23 services21 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02138 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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
17 suppliers47 claims148 services$4.90 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers13 claims24 services$0.99 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
7 suppliers68 claims68 services$184.25 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

DR. SANAM LATHIEF M.D
Internal Medicine (Endocrinology, Diabetes & Metabolism)
725 CONCORD AVE STE 3300
CAMBRIDGE, MA 02138
Middlesex County (617) 864-8822
RAMA PRIYANKA NAGIREDDI MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
725 CONCORD AVE STE 3300
CAMBRIDGE, MA 02138
Middlesex County (617) 802-6520
MEHMET SERCAN MARANGOZ M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
725 CONCORD AVE STE 3300
CAMBRIDGE, MA 02138
Middlesex County (617) 864-8822

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 Krystal Mershon's NPI number?

The NPI number for Krystal Mershon is 1700288388. It was assigned to this individual provider in the NPPES registry on September 25, 2014.

Where is Krystal Mershon located?

Krystal Mershon practices at 725 Concord Ave Ste 3300, Cambridge, MA 02138. The listed phone number is (617) 864-8822.

What is Krystal Mershon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Krystal Mershon enrolled in Medicare?

Yes. Krystal Mershon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Krystal Mershon was last updated on December 3, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.