DR. MARGARET M MACK PHD., MA, APRN BC
NPI 1962618686
Clinical Nurse Specialist - Psychiatric/Mental Health, Adult in Wilmington, DE

Active since May 16, 2007PECOS EnrolledAccepts Medicare Assignment
10 GUYENNE RD, WILMINGTON, DE 19807(302) 530-0358 Get Directions Write a Review

NPPES record last updated: June 29, 2021. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Dr. Margaret M Mack Phd., Ma, Aprn Bc NPPES

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

DR. MARGARET M MACK PHD., MA, APRN BC (NPI 1962618686) is an individual psychiatric/mental health, adult provider in Wilmington, Delaware, licensed in Delaware (LE-0000123) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1962618686
Entity TypeIndividualFemale
Primary Taxonomy364SP0809X
Provider Legal NameDR. MARGARET M MACKCredential: PHD., MA, APRN BC
Location Address10 GUYENNE RDWilmington, DE 19807-1414
Mailing Address10 Guyenne RdWilmington, DE 19807-1414 · (302) 656-4595
Sole ProprietorYes
Medical School CMSOtherGraduated 1981
Enumeration DateMay 16, 2007
Last NPPES UpdateJune 29, 2021
NPPES CertifiedJune 29, 2021
NPI 1962618686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Nurse Specialist · Psychiatric/Mental Health, AdultPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364SP0809X
License Licensed in DE · LE-0000123
10 GUYENNE RD, Wilmington, DE 19807

Other Names 1

Other Name (5)Peggy Mack

Accepted 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

Dr. Margaret M Mack Phd., Ma, 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 ID3577821628
PECOS Enrollment IDI20171218002941
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 4

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.
156 services25 patients
Psychotherapy with evaluation and management visit, 45 minutes 90836
Psychotherapy with evaluation and management is a 45-minute session where a healthcare provider discusses your mental and emotional health. They assess your current state, manage any issues, and help you develop coping strategies. This service aims to improve your overall well-being.
122 services23 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
47 services17 patients
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.
18 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19807 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
$131.15 typical visit price
range $57.12 – $173.08
Typical copayment $32.78 (range $14.28 – $43.27)
Most-billed visit code 99204
Established Patient
$100.68 typical visit price
range $18.36 – $141.05
Typical copayment $25.17 (range $4.59 – $35.26)
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.

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 Margaret Mack's NPI number?

The NPI number for Margaret Mack is 1962618686. It was assigned to this individual provider in the NPPES registry on May 16, 2007. The provider is also known as Peggy Mack.

Where is Margaret Mack located?

Margaret Mack practices at 10 Guyenne Rd, Wilmington, DE 19807. The listed phone number is (302) 530-0358.

What is Margaret Mack's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Psychiatric/Mental Health, Adult, with taxonomy code 364SP0809X.

Is Margaret Mack enrolled in Medicare?

Yes. Margaret Mack 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 Margaret Mack accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Margaret Mack 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 Margaret Mack was last updated on June 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.