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

DR. MARISSA A. MACLIN MD
NPI 1619296902
Pain Medicine - Pain Medicine in New Orleans, LA

Active since May 26, 2010PECOS EnrolledAccepts Medicare Assignment
4215 S CLAIBORNE AVE STE 102, NEW ORLEANS, LA 70125(504) 300-9020(504) 300-9021 Get Directions Write a Review

NPPES record last updated: September 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 4, 2026, Nov 5, 2021, Mar 2, 2021 and 4 more (7 updates tracked since 2016).

About Dr. Marissa A. Maclin Md NPPES

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

DR. MARISSA A. MACLIN MD (NPI 1619296902) is an individual pain medicine provider in New Orleans, Louisiana, licensed in New York (281733) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS and is a graduate of State Un Of Ny, Stony Brook School Of Dental Med (2010).

NPPES Registry Identity

NPI1619296902
Entity TypeIndividualFemale
Primary Taxonomy208VP0000X
Provider Legal NameDR. MARISSA A. MACLINCredential: MD
Location Address4215 S CLAIBORNE AVE STE 102New Orleans, LA 70125-5101
Mailing Address4215 S Claiborne Ave Ste 102New Orleans, LA 70125-5101 · (504) 300-9020 · Fax (504) 300-9021
Fax(504) 300-9021
Sole ProprietorNo
Medical School CMSState Un Of Ny, Stony Brook School Of Dental MedGraduated 2010
Enumeration DateMay 26, 2010
Last NPPES UpdateSeptember 4, 20267 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2026
✔ NPI 1619296902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPain Medicine · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code208VP0000X
License✔ Licensed in NY · 281733
Definition
Pain Medicine is a primary medical specialty based on a distinct body of knowledge and a well-defined scope of clinical practice that is founded on science, research and education. It is concerned with the study of pain, the prevention of pain, and the evaluation, treatment, and rehabilitation of persons in pain. A comprehensive evaluation incorporates the physical, psychological, cognitive and socio-cultural contributions to pain. The treatment protocol may include pharmacological, invasive, behavioral, cognitive, rehabilitative and complementary strategies provided in a concurrent focused and patient specific manner. The pain medicine physician often serves the patient as a frontline physician regarding their pain, but also may serve as a consultant to other physicians, direct an interdisciplinary/multidisciplinary treatment team, conduct research, or advocate for the patient's pain care with public and private agencies. The Pain Medicine physician may work in variety of settings including office, clinic, hospital, university, or governmental/public agencies.
Also ListedAnesthesiologyTaxonomy 207L00000X · License 281733 (NY)
4215 S CLAIBORNE AVE STE 102, New Orleans, LA 70125

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marissa A. Maclin Md 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 ID5294013876
PECOS Enrollment IDI20240918000430
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Marissa Maclin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Interventional Pain Medicine
4215 S CLAIBORNE AVE STE 102
New Orleans, LA 70125
  • Reassigned Medicare billing, Louisiana enrollment
  • 10 clinicians in this Medicare group
Family Medicine
325 ESSJAY RD, 4TH FLOOR ADMIN
Williamsville, NY 14221
  • Reassigned Medicare billing, New York enrollment
  • 344 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 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.
25 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70125 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
$128.88 typical visit price
range $55.50 – $170.30
Typical copayment $32.22 (range $13.87 – $42.57)
Most-billed visit code 99204
Established Patient
$98.35 typical visit price
range $17.42 – $138.03
Typical copayment $24.58 (range $4.35 – $34.50)
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 2

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

Pain Medicine (Interventional Pain Medicine)
4215 S CLAIBORNE AVE STE 102
NEW ORLEANS, LA 70125
Anesthesiology (Pain Medicine)
4215 S CLAIBORNE AVE STE 102
NEW ORLEANS, LA 70125

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 Marissa Maclin's NPI number?

The NPI number for Marissa Maclin is 1619296902. It was assigned to this individual provider in the NPPES registry on May 26, 2010.

Where is Marissa Maclin located?

Marissa Maclin practices at 4215 S Claiborne Ave Ste 102, New Orleans, LA 70125. The listed phone number is (504) 300-9020.

What is Marissa Maclin's specialty?

The primary specialty registered for this NPI is Pain Medicine with taxonomy code 208VP0000X.

Is Marissa Maclin enrolled in Medicare?

Yes. Marissa Maclin 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.

Which organizations bill Medicare for Marissa Maclin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Maclin reassigns Medicare benefits to 2 organizations: Integrated Pain And Neuroscience (New Orleans, LA) and Buffalo Medical Group, P.C. (Williamsville, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marissa Maclin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marissa Maclin accept?

Health plans from Blue Cross and Blue Shield of Louisiana and HMO Louisiana list Marissa Maclin 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 Marissa Maclin was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 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.