Registry data as of Aug 27, 2026

David Siegenberg, M.D.

Internal Medicine Physician · Reading, MA

David Siegenberg, M.D. is an internal medicine physician with a practice address in Reading, Massachusetts, and NPI 1578502563, issued on Jun 5, 2006. Check the license (Massachusetts 74850, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1578502563
Name
David Siegenberg
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
74850 MA
Self-reported in NPPES; status is on the state search
Practice location
30 Newcrossing RD, Reading, MA 01867
Phone
(781) 944-1166
Enumerated
Jun 5, 2006
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.
Download card Updates feed

Also registered at 30 Newcrossing RD

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

  1. Karyl Cargill, CNMAdvanced Practice Midwife1275524571
  2. Eleanor Haley-Ciulla, NPAdult Health Nurse Practitioner1326014093
  3. Catherine Santom Murphy, RNPNurse Practitioner1265516298

Verify David Siegenberg 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 74850
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

34% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,838 Medicare Part D claims for 423 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. David Siegenberg1,838
  2. Specialty average2,785

Most prescribed

  1. Omeprazole228 claims
  2. Famotidine150 claims
  3. Lisinopril92 claims
  4. Atorvastatin Calcium89 claims
  5. Metoprolol Succinate67 claims
  6. Amlodipine Besylate52 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.

No measured Medicare quality score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $972.53

36 payments, mostly food and beverage; the largest payer was Janssen Biotech, Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Siegenberg$972.53
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. David Siegenberg MD PCReading, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

10 internal medicine physician records list a Reading practice address

They are 10 of the 333 NPPES records with a Reading practice address, and 7,865 internal medicine physician records in Massachusetts.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Zainab AbbasWorcester, MA1609028000
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Lauren Abbate, MDBoston, MA1922099621
  5. Bassima Abdallah, MDBoston, MA1912327305
  6. Samah Abdallah, MDBrighton, MA1730814971
  7. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  8. Salah Abdelgadir, MDBoston, MA1891280954
  9. Mahmoud Abdelghany, M.D.Springfield, MA1134479629
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is David Siegenberg, M.D.'s NPI number?

David Siegenberg, M.D.'s National Provider Identifier (NPI) is 1578502563, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Siegenberg, M.D. located?

The NPPES record lists a practice address at 30 Newcrossing RD, Reading, MA, 01867. Phone: (781) 944-1166. Providers update this record themselves, so call before visiting.

How can I verify David Siegenberg, M.D.'s license?

NPPES lists Massachusetts license number 74850, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Siegenberg, M.D. prescribe under Medicare Part D?

In 2024, David Siegenberg, M.D. had 1,838 Medicare Part D claims for 423 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

What is David Siegenberg, M.D.'s Medicare quality score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.