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

MELISSA MERCADO WITTIG DO
NPI 1821587270
Family Medicine in Paterson, NJ

Active since May 01, 2018PECOS EnrolledAccepts Medicare Assignment
661 MAIN ST STE 202, PATERSON, NJ 07503(973) 754-4525 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 10, 2026, May 1, 2018 (2 updates tracked since 2018).

About Melissa Mercado Wittig Do NPPES

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

MELISSA MERCADO WITTIG DO (NPI 1821587270) is an individual family medicine provider in Paterson, New Jersey, licensed in New Jersey (NA) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2010).

NPPES Registry Identity

NPI1821587270
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMELISSA MERCADO WITTIGCredential: DO
Location Address661 MAIN ST STE 202Paterson, NJ 07503-3028
Mailing Address661 Main St Ste 202Paterson, NJ 07503-3028 · (973) 754-4525
Sole ProprietorNo
Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 2010
Enumeration DateMay 1, 2018
Last NPPES UpdateAugust 10, 20262 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
NPI 1821587270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in NJ · NA
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
661 MAIN ST STE 202, Paterson, NJ 07503

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

Melissa Mercado Wittig Do 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 ID8820490097
PECOS Enrollment IDI20210709001972
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 28

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.
252 services113 patients
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.
75 services38 patients
Test to measure expiratory airflow and volume changes before and after medication administration 94060
This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.
60 services46 patients
Test to determine lung volumes using gas dilution or washout 94727
This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.
60 services46 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
60 services46 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.
53 services30 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07503 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
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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

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

Internal Medicine (Cardiovascular Disease)
661 MAIN ST STE 202
PATERSON, NJ 07503

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 Melissa Mercado Wittig's NPI number?

The NPI number for Melissa Mercado Wittig is 1821587270. It was assigned to this individual provider in the NPPES registry on May 1, 2018.

Where is Melissa Mercado Wittig located?

Melissa Mercado Wittig practices at 661 Main St Ste 202, Paterson, NJ 07503. The listed phone number is (973) 754-4525.

What is Melissa Mercado Wittig's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Melissa Mercado Wittig enrolled in Medicare?

Yes. Melissa Mercado Wittig 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 Melissa Mercado Wittig accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Melissa Mercado Wittig 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 Melissa Mercado Wittig was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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.