NPPES file of Aug 9, 2026

Karen Levine Kamholz, MD

Neonatal-Perinatal Medicine Physician · Boston, MA

Karen Levine Kamholz, MD is a neonatal-perinatal medicine physician with a practice address in Boston, Massachusetts, and NPI 1457332496, issued on Nov 8, 2005. Check the license (Massachusetts 213396, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457332496
Name
Karen Levine Kamholz
Credential
MD
Primary taxonomy
Neonatal-Perinatal Medicine Physician 2080N0001X
License numbers
213396 MA
MD040771 DC
Self-reported in NPPES; status is on the state search
Practice location
840 Harrison Ave, Boston, MA 02118
Phone
(617) 414-5471
Enumerated
Nov 8, 2005
Record last updated
Oct 30, 2023
Fax
(617) 414-4358
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 840 Harrison Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohamad Abdalkader, M.D.Diagnostic Radiology Physician1124472584
  2. Julie AgbasiPhysical Therapist1720475775
  3. Stephan Anderson, M.D.Diagnostic Radiology Physician1235243122
  4. Brendan AttridgeMental Health Counselor1326854019
  5. Rajasekhara Ayyagari, MDVascular & Interventional Radiology Physician1700906294
  6. Mohammad Bader, M.D.Vascular & Interventional Radiology Physician1417360140

Verify Karen Levine Kamholz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 213396
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 76.6 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.

  1. Qualityout of 100 · 30% of the final score63.2
  2. Costout of 100 · 30%55.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Karen Levine Kamholz among 224 neonatal-perinatal medicine physician records in Massachusetts

Karen Levine Kamholz, MD is one of 224 neonatal-perinatal medicine physician records with a practice address in Massachusetts. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal-Perinatal Medicine Physician providers in Massachusetts

There are 224 neonatal-perinatal medicine physician records in Massachusetts.

The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes

  1. Wanda Barfield, M.D., M.P.H.Boston, MA 021181720062409
  2. Mary Blackwell, MDBoston, MA 021181538141965
  3. Elizabeth Brown, MDBoston, MA 021181346221330
  4. Mark Castera, MDBoston, MA 021181649775396
  5. Cynthia Cole, M.D.Boston, MA 021181447298757
  6. Alan Fujii, MDBoston, MA 021181164419586
  7. Anjali Iyengar, M.DBoston, MA 021181558527820
  8. Maricor Cristina Javier, MDBoston, MA 021181851302889

Common questions

What is Karen Levine Kamholz, MD's NPI number?

Karen Levine Kamholz, MD's National Provider Identifier (NPI) is 1457332496, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karen Levine Kamholz, MD located?

The NPPES record lists a practice address at 840 Harrison Ave, Boston, MA, 02118. Phone: (617) 414-5471. Providers update this record themselves, so call before visiting.

How can I verify Karen Levine Kamholz, MD's license?

NPPES lists Massachusetts license number 213396, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Karen Levine Kamholz, MD's MIPS final score?

The 2023 MIPS final score is 76.6 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.