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MARIA S. KOEN NP
NPI 1891833935
Nurse Practitioner - Family in Boston, MA

Active since February 01, 2007PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Maria S. Koen Np NPPES

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

MARIA S. KOEN NP (NPI 1891833935) is an individual family provider in Boston, Massachusetts, licensed in Massachusetts (239263) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Other (2006).

NPPES Registry Identity

NPI1891833935
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARIA S. KOENCredential: NP
Location Address1 JOSLIN PLBoston, MA 02215-5306
Mailing Address33 Auburn St # BWaltham, MA 02453-2803 · (781) 771-4962
Phone(617) 732-2699
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateFebruary 1, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1891833935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · 239263
1 JOSLIN PL, Boston, MA 02215
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Maria S. Koen 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 ID5991808420
PECOS Enrollment IDI20070321000216
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 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.

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
110 services69 patients
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.
94 services68 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
34 services33 patients
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.
27 services20 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

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.

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
26 suppliers43 claims196 services$6.46 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers12 claims24 services$1.08 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
10 suppliers97 claims97 services$179.96 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 20

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

DR. EDWARD SCHURR HORTON M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 309-2400
MS. LOUISE AMBLER OSBORN CPNP
Nurse Practitioner (Pediatrics)
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 732-2603
DR. JASON L GAGLIA M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1 JOSLIN PL, ROOM 470
BOSTON, MA 02215
Suffolk County (617) 732-2675
KARA ROMAN HARRINGTON PHD
Psychologist
1 JOSLIN PL, DEPARTMENT OF PEDIATRICS
BOSTON, MA 02215
Suffolk County (617) 732-2603
CATERINA MORGERA MS, RD, LDN, CDOE
Dietitian, Registered
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 309-2440
MR. JOYCE KEADY PNP, RN
Nurse Practitioner (Pediatrics)
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 309-4499
DR. JASON NOBLE M.D.
Ophthalmology
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 732-2586
ASSEL TALASPAYEVA MD
Ophthalmology
1 JOSLIN PL
BOSTON, MA 02215
Suffolk County (617) 309-2400

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 Maria Koen's NPI number?

The NPI number for Maria Koen is 1891833935. It was assigned to this individual provider in the NPPES registry on February 1, 2007.

Where is Maria Koen located?

Maria Koen practices at 1 Joslin Pl, Boston, MA 02215. The listed phone number is (617) 732-2699.

What is Maria Koen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Maria Koen enrolled in Medicare?

Yes. Maria Koen 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 Maria Koen accept?

Health plans from Anthem Blue Cross and Blue Shield list Maria Koen 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 Maria Koen affiliated with any hospitals?

According to CMS data, Maria Koen is affiliated with Beth Israel Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Maria Koen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.