DR. DIANA C MARTINS-WELCH M.D.
NPI 1275832446
Internal Medicine - Hospice and Palliative Medicine in Manhasset, NY

Q: What is Diana Martins-welch's NPI number?

The NPI number for Diana Martins-welch is 1275832446. It was assigned to this individual provider in the NPPES registry on March 27, 2011.

Q: What is Diana Martins-welch's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Active since March 27, 2011PECOS EnrolledAccepts Medicare Assignment

91.25/100

CMS Quality Rating

300 COMMUNITY DR, MANHASSET, NY 11030(516) 562-3015 Get Directions Write a Review

NPPES record last updated: November 2, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Diana C Martins-welch M.d. NPPES

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

DR. DIANA C MARTINS-WELCH M.D. (NPI 1275832446) is an individual hospice and palliative medicine provider in Manhasset, New York, licensed in New York (267099) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2011).

NPPES Registry Identity

NPI1275832446

Entity TypeIndividualFemale

Primary Taxonomy207RH0002X

Provider Legal NameDR. DIANA C MARTINS-WELCHCredential: M.D.

Location Address300 COMMUNITY DRManhasset, NY 11030-3816

Mailing Address300 Community DrManhasset, NY 11030-3816 · (516) 562-3015

Phone(516) 562-3015

Sole ProprietorNo

Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 2011

Enumeration DateMarch 27, 2011

Last NPPES UpdateNovember 2, 2015

✔ NPI 1275832446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RH0002X

License✔ Licensed in NY · 267099

Definition

An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.

300 COMMUNITY DR, Manhasset, NY 11030

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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. Diana C Martins-welch M.d. 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 ID1951520626

PECOS Enrollment IDI20140910002146

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

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

North Shore-Lij Medical PC

0.6 mi

Urology

1010 NORTHERN BLVD STE 110
Great Neck, NY 11021

Reassigned Medicare billing, New York enrollment
9,353 clinicians in this Medicare group

NPI 1053688572 (516) 321-7400

North Shore Health System Medical Faculty Group Practice Inc

1.5 mi

Hematology & Oncology

450 LAKEVILLE RD
New Hyde Park, NY 11042

Reassigned Medicare billing, New York enrollment
198 clinicians in this Medicare group

NPI 1003409061 (516) 734-8900

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 5

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.

158 services85 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.

133 services73 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

67 services49 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

59 services59 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

19 services19 patients

Hospital Affiliations CMS Care Compare

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

North Shore University Hospital

Acute Care Hospitals · Manhasset, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330106

Location300 Community DriveManhasset, NY 11030 · Nassau County

Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.25/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

74.92

Promoting Interoperability

91.67

Improvement Activities

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.

SAMIT SHAH M.D.

Internal Medicine (Advanced Heart Failure and Transplant Cardiology)

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 562-1427

DR. SAMANTHA LING PHARMD

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 562-8761

DR. DIANA RACHAEL NORDQUIST MD

Anesthesiology

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 562-8630

DR. STEPHEN JOHN CIPOT IV D.O.

Emergency Medicine

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 684-7598

MR. JOSE LUIS CRUZ PA-C

Physician Assistant

300 COMMUNITY DR, NORTH SHORE UNIVERSITY HOSPITAL
MANHASSET, NY 11030

Nassau County (516) 562-3683

SARAH BETH KORNHABER C.R.N.A.

Nurse Anesthetist, Certified Registered

300 COMMUNITY DR, DEPT OF ANESTHESIA
MANHASSET, NY 11030

Nassau County (516) 562-4887

YUSON CHONG NP

Nurse Practitioner (Acute Care)

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 562-2252

THERESA MARY MOUZAKITIS PA

Physician Assistant

300 COMMUNITY DR
MANHASSET, NY 11030

Nassau County (516) 662-5100

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 Diana Martins-welch's NPI number?

The NPI number for Diana Martins-welch is 1275832446. It was assigned to this individual provider in the NPPES registry on March 27, 2011.

Where is Diana Martins-welch located?

Diana Martins-welch practices at 300 Community Dr, Manhasset, NY 11030. The listed phone number is (516) 562-3015.

What is Diana Martins-welch's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Diana Martins-welch enrolled in Medicare?

Yes. Diana Martins-welch 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 Diana Martins-welch's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Martins-welch reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and North Shore Health System Medical Faculty Group Practice Inc (New Hyde Park, 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 Diana Martins-welch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Diana Martins-welch affiliated with any hospitals?

According to CMS data, Diana Martins-welch is affiliated with North Shore University Hospital.

When was this NPI record last updated?

The NPPES record for Diana Martins-welch was last updated on November 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.