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

KAREN D SPITLER APRN, BC
NPI 1225001209
Nurse Practitioner - Adult Health in Cambridge, MA

Active since February 09, 2006PECOS Enrolled
77 MASS AVE, MEDICAL E23-395, CAMBRIDGE, MA 02139(617) 253-1311 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Karen D Spitler Aprn, Bc NPPES

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

KAREN D SPITLER APRN, BC (NPI 1225001209) is an individual adult health provider in Cambridge, Massachusetts, licensed in Massachusetts (152046) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1985).

NPPES Registry Identity

NPI1225001209
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameKAREN D SPITLERCredential: APRN, BC
Location Address77 MASS AVE, MEDICAL E23-395Cambridge, MA 02139-4301
Mailing Address32 Telegraph Hill RdMarshfield, MA 02050-2523 · (781) 837-7270
Sole ProprietorNo
Medical School CMSOtherGraduated 1985
Enumeration DateFebruary 9, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1225001209 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in MA · 152046
77 MASS AVE, Cambridge, MA 02139

Other Identifiers 1

OtherNP4434MA · Blue Cross

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 D Spitler Aprn, Bc 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 ID6406840644
PECOS Enrollment IDI20040412000954
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 straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02139 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.

Psychiatry & Neurology (Psychiatry)
77 MASS AVE, MEDICAL E23-395
CAMBRIDGE, MA 02139
Nurse Practitioner (Adult Health)
77 MASS AVE, MEDICAL E23-395
CAMBRIDGE, MA 02139
Internal Medicine
77 MASS AVE, E23 193 MIT MEDICAL DEPARTMENT
CAMBRIDGE, MA 02139
Dietitian, Registered
77 MASS AVE, MEDICAL E23-395
CAMBRIDGE, MA 02139
Psychiatry & Neurology (Psychiatry)
77 MASS AVE, MEDICAL E23-395
CAMBRIDGE, MA 02139
Nurse Practitioner (Adult Health)
77 MASS AVE, E23-395 MEDICAL
CAMBRIDGE, MA 02139
Clinical Nurse Specialist (Psychiatric/Mental Health)
77 MASS AVE, MEDICAL E23-395
CAMBRIDGE, MA 02139
Optometrist
77 MASS AVE, MEDICAL E23-2S
CAMBRIDGE, MA 02139

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 Spitler's NPI number?

The NPI number for Karen Spitler is 1225001209. It was assigned to this individual provider in the NPPES registry on February 9, 2006.

Where is Karen Spitler located?

Karen Spitler practices at 77 Mass Ave Medical E23-395, Cambridge, MA 02139. The listed phone number is (617) 253-1311.

What is Karen Spitler's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Karen Spitler enrolled in Medicare?

Yes. Karen Spitler 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.

When was this NPI record last updated?

The NPPES record for Karen Spitler was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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.