DR. HEATHER MARIE MASCIO D.O
NPI 1962633610
Internal Medicine - Nephrology in Chester, PA

Q: What is Heather Mascio's NPI number?

The NPI number for Heather Mascio is 1962633610. It was assigned to this individual provider in the NPPES registry on July 29, 2009. The provider is also known as Heather Marie Maston D.O.

Q: What is Heather Mascio's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Heather Mascio was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.

Active since July 29, 2009PECOS EnrolledAccepts Medicare Assignment

30 MEDICAL CENTER BLVD, CHESTER, PA 19013(610) 872-8501(610) 872-5188 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Dr. Heather Marie Mascio D.o NPPES

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

DR. HEATHER MARIE MASCIO D.O (NPI 1962633610) is an individual nephrology provider in Chester, Pennsylvania, licensed in Pennsylvania (0S19327) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Rowan University School Of Osteopathic Medicine (2009).

NPPES Registry Identity

NPI1962633610

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameDR. HEATHER MARIE MASCIOCredential: D.O

Location Address30 MEDICAL CENTER BLVDChester, PA 19013-3955

Mailing AddressPo Box 1Flourtown, PA 19031-0001 · (610) 872-8501 · Fax (610) 872-5188

Phone(610) 872-8501

Fax(610) 872-5188

Sole ProprietorYes

Medical School CMSRowan University School Of Osteopathic MedicineGraduated 2009

Enumeration DateJuly 29, 2009

Last NPPES UpdateSeptember 4, 2025

NPPES CertifiedSeptember 4, 2025

✔ NPI 1962633610 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in PA · 0S19327

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

30 MEDICAL CENTER BLVD, Chester, PA 19013

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Other Names 1

Former Name (1)Heather Marie Maston D.o

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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. Heather Marie Mascio D.o 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 ID9436471653

PECOS Enrollment IDI20180913002757

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 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

843 services293 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.

705 services305 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

433 services96 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

272 services96 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

179 services169 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

170 services33 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

80 services44 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

45 services26 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

25 services25 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

19 services19 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

13 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390111

Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County

Emergency services Birthing friendly

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390139

Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County

Emergency services Birthing friendly

Chester County Hospital

Acute Care Hospitals · West Chester, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390179

Location701 East Marshall StreetWest Chester, PA 19380 · Chester County

Emergency services Birthing friendly

Main Line Hospital Lankenau

Acute Care Hospitals · Wynnewood, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390195

Location100 Lancaster AveWynnewood, PA 19096 · Montgomery County

Emergency services Birthing friendly

Riddle Memorial Hospital

Acute Care Hospitals · Media, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390222

Location1068 West Baltimore PikeMedia, PA 19063 · Delaware County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19013 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

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$105.21 typical visit price

range $19.30 – $147.29

Typical copayment $26.30 (range $4.82 – $36.82)

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.

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

2 suppliers14 claims1,680 services$0.31 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier12 claims720 services$0.18 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

2 suppliers16 claims16 services$12.65 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.

JESSICA FUNARI

Nurse Anesthetist, Certified Registered

30 MEDICAL CENTER BLVD
CHESTER, PA 19013

Delaware County (610) 874-6448

KEANU KALANI LAPOT BA

Counselor (Addiction (Substance Use Disorder))

30 MEDICAL CENTER BLVD
CHESTER, PA 19013

Delaware County (856) 404-4044

PHYLLIS GARBERMAN SCHAPIRE MD

Anesthesiology

30 MEDICAL CENTER BLVD, SUITE 305
UPLAND, PA 19013

Delaware County (610) 874-6448

CYNTHIA FOORE CRNA

Nurse Anesthetist, Certified Registered

30 MEDICAL CENTER BLVD, SUITE 305
CHESTER, PA 19013

Delaware County (610) 874-6448

MRS. JESSICA ELIZABETH MATHIESON P.A.

Physician Assistant (Medical)

30 MEDICAL CENTER BLVD, POB #1 - SUITE 305
CHESTER, PA 19013

Delaware County (610) 447-6021

RAMBABU THALLAPANENI M.D

Hospitalist

30 MEDICAL CENTER BLVD, SUITE 404
UPLAND, PA 19013

Delaware County (610) 619-8590

PATRICIA KIDWELL CRNA

Nurse Anesthetist, Certified Registered

30 MEDICAL CENTER BLVD, SUITE 305
UPLAND, PA 19013

Delaware County (610) 874-6448

GEORGE RANDOLPH WESTBY M.D.

Internal Medicine (Nephrology)

30 MEDICAL CENTER BLVD, SUITE 303
UPLAND, PA 19013

Delaware County (610) 872-8501

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 Heather Mascio's NPI number?

The NPI number for Heather Mascio is 1962633610. It was assigned to this individual provider in the NPPES registry on July 29, 2009. The provider is also known as Heather Marie Maston D.O.

Where is Heather Mascio located?

Heather Mascio practices at 30 Medical Center Blvd, Chester, PA 19013. The listed phone number is (610) 872-8501.

What is Heather Mascio's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Heather Mascio enrolled in Medicare?

Yes. Heather Mascio 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.

Is Heather Mascio affiliated with any hospitals?

According to CMS data, Heather Mascio is affiliated with Hospital Of Univ Of Pennsylvania, Bryn Mawr Hospital, Chester County Hospital, Main Line Hospital Lankenau and Riddle Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Heather Mascio was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.