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DR. NICHOLAS MELLIS M.D.
NPI 1588663108
Internal Medicine in Timonium, MD

Active since July 15, 2005Opted out of Medicare · through Apr 1, 2028
2352 YORK RD, TIMONIUM, MD 21093(410) 560-5652(410) 560-4971 Get Directions Write a Review

NPPES record last updated: September 26, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Nicholas Mellis M.d. NPPES

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

DR. NICHOLAS MELLIS M.D. (NPI 1588663108) is an individual internal medicine provider in Timonium, Maryland, licensed in Maryland (D47762) and active in the NPI registry since July 2005. He has opted out of Medicare through April 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1588663108
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. NICHOLAS MELLISCredential: M.D.
Location Address2352 YORK RDTimonium, MD 21093-2236
Mailing Address2352 York RdTimonium, MD 21093-2236 · (410) 560-5652 · Fax (410) 560-4971
Phone(410) 560-5652
Fax(410) 560-4971
Sole ProprietorNo
Enumeration DateJuly 15, 2005
Last NPPES UpdateSeptember 26, 2023
NPPES CertifiedSeptember 26, 2023
✔ NPI 1588663108 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D47762
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2352 YORK RD, Timonium, MD 21093
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Dr. Nicholas Mellis M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2018 through April 1, 2028.

Opt-Out Effective DateApril 1, 2018
Opt-Out In Effect ThroughApril 1, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21093 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable oxygen contents, liquid, 1 month's supply = 1 unit E0444
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$36.09 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier15 claims15 services$4.29 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers20 claims20 services$64.52 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers18 claims18 services$34.32 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier17 claims17 services$204.29 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

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

NICK MELLIS MD PA
Internal Medicine
2352 YORK RD
TIMONIUM, MD 21093
Baltimore County (410) 560-5652

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 Nicholas Mellis's NPI number?

The NPI number for Nicholas Mellis is 1588663108. It was assigned to this individual provider in the NPPES registry on July 15, 2005.

Where is Nicholas Mellis located?

Nicholas Mellis practices at 2352 York Rd, Timonium, MD 21093. The listed phone number is (410) 560-5652.

What is Nicholas Mellis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nicholas Mellis enrolled in Medicare?

No. Nicholas Mellis has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Nicholas Mellis was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.