Diana C. Martins-Welch, M.D.
Hospice and Palliative Medicine (Internal Medicine) Physician · Manhasset, NY
Diana C. Martins-Welch, M.D. is a hospice and palliative medicine (internal medicine) physician with a practice address in Manhasset, New York, and NPI 1275832446, issued on Mar 27, 2011. Check the license (New York 267099, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diana C. Martins-Welch
- Credential
- M.D.
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- 267099 NY
Self-reported in NPPES; status is on the state search - Practice location
- 300 Community Dr, Manhasset, NY 11030
- Phone
- (516) 562-3015
- Enumerated
- Mar 27, 2011
- Record last updated
- Nov 2, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140910002146); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 218 in New York → Look up another NPI →
Also registered at 300 Community Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Abbondondolo, PAReligious Nonmedical Nursing Personnel1154441186
- Mahmoud AbdelazizInternal Medicine Physician1750814562
- Fatima AbidPhysician Assistant1215669346
- Ahmed AboseriaStudent in an Organized Health Care Education/Training Program1114777067
- Nikil Abraham, CRNACertified Registered Nurse Anesthetist1962180455
- Rolson Abraham, RPHPharmacist1346673209
Verify Diana C. Martins-Welch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 267099Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
983 Medicare Part D claims for 173 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 492 claims were for opioids.
Most prescribed
- Oxycodone Hcl174 claims
- Methadone Hcl107 claims
- Gabapentin93 claims
- Hydromorphone Hcl61 claims
- Morphine Sulfate54 claims
- Morphine Sulfate Er39 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore-Lij Medical PCNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana C. Martins-Welch among 218 hospice and palliative medicine (internal medicine) physician records in New York
Diana C. Martins-Welch, M.D. is one of 218 hospice and palliative medicine (internal medicine) physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 45% of them.
- NPI issued2011 · 45% of these records are older, 52% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2013 among the 155 with a school on file
- Record last updated2015 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in New York
There are 218 hospice and palliative medicine (internal medicine) physician records in New York.
All 218 in New York → Every provider in Manhasset → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- An Leung, M.D.Manhasset, NY 110301982042404
- Katlynn Van Ogtrop, M.D.Manhasset, NY 110301275943219
- Sindee Weiss, MDManhasset, NY 110301548315294
- Jinny Caldentey, M.D.New Hyde Park, NY 110401871834788
- Maria Quinteros Flores, M.D.New Hyde Park, NY 110401871901470
- Sofia Valbuena-Castor, MDLong Island City, NY 111011073190559
- David Chmielewski, MDNew City, NY 109561366603250
- Jhosselini Cardenas Mori, MDMiddletown, NY 109401952614125
Common questions
What is Diana C. Martins-Welch, M.D.'s NPI number?
Diana C. Martins-Welch, M.D.'s National Provider Identifier (NPI) is 1275832446, issued on Mar 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Diana C. Martins-Welch, M.D. located?
The NPPES record lists a practice address at 300 Community Dr, Manhasset, NY, 11030. Phone: (516) 562-3015. Providers update this record themselves, so call before visiting.
How can I verify Diana C. Martins-Welch, M.D.'s license?
NPPES lists New York license number 267099, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diana C. Martins-Welch, M.D. prescribe under Medicare Part D?
In 2024, Diana C. Martins-Welch, M.D. had 983 Medicare Part D claims for 173 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Diana C. Martins-Welch, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.