Ivan Patrick Maillard, MD
Hematology (Internal Medicine) Physician · Philadelphia, PA
Ivan Patrick Maillard, MD is a hematology (internal medicine) physician with a practice address in Philadelphia, Pennsylvania, and NPI 1568403269, issued on Jun 10, 2006. Check the license (Pennsylvania MD423465, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Ivan Patrick Maillard
- Credential
- MD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License number
- MD423465 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Spruce St, Philadelphia, PA 19104
- Phone
- (215) 615-0063
- Enumerated
- Jun 10, 2006
- Record last updated
- Sep 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (215) 349-8144
- Medicaid ID
- 1013530260002 PA
- Medicare enrollment
- Enrolled (PECOS I20250130002386); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 67 in Pennsylvania → Look up another NPI →
Also registered at 3400 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Abbott, CRNPNurse Practitioner1396771689
- Michael Abboud, MDEmergency Medicine Physician1962820852
- Emily AbdelmessihPediatric Pharmacist1891612560
- Mohammed AbdullahStudent in an Organized Health Care Education/Training Program1013595495
- Amin Abedini, MDStudent in an Organized Health Care Education/Training Program1912609017
- Farid Aboharb, MD, PHDStudent in an Organized Health Care Education/Training Program1295595973
Verify Ivan Patrick Maillard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD423465Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $4,228.18
3 payments; by number, the most common kind was consulting fee; the largest payer was Gilead Sciences, Inc. The 721 providers of this specialty with any payment received $13,778.35 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Memorial Hematology Lymphoma GroupNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ivan Patrick Maillard among 67 hematology (internal medicine) physician records in Pennsylvania
Ivan Patrick Maillard, MD is one of 67 hematology (internal medicine) physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1993 · median 2001 among the 44 with a school on file
- Record last updated2019 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in Pennsylvania
There are 67 hematology (internal medicine) physician records in Pennsylvania.
All 67 in Pennsylvania → Every provider in Philadelphia → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Jane Alavi, MDPhiladelphia, PA 191041285662387
- Elaine Chiang, MDPhiladelphia, PA 191041548360241
- Adam Cuker, MDPhiladelphia, PA 191041457414625
- Jack Goldberg, MDPhiladelphia, PA 191041548372022
- Du Pont Guerry, MDPhiladelphia, PA 191041902849292
- Elizabeth Hexner, MDPhiladelphia, PA 191041366486250
- Nasheed Hossain, M.D.Philadelphia, PA 191041437470721
- Peter Klein, MD PHDPhiladelphia, PA 191041467495788
Common questions
What is Ivan Patrick Maillard, MD's NPI number?
Ivan Patrick Maillard, MD's National Provider Identifier (NPI) is 1568403269, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ivan Patrick Maillard, MD located?
The NPPES record lists a practice address at 3400 Spruce St, Philadelphia, PA, 19104. Phone: (215) 615-0063. Providers update this record themselves, so call before visiting.
How can I verify Ivan Patrick Maillard, MD's license?
NPPES lists Pennsylvania license number MD423465, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Ivan Patrick Maillard, MD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. 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.