NPPES file of Aug 9, 2026

Nathan J. Blum, M.D.

Developmental - Behavioral Pediatrics Physician · Philadelphia, PA

Nathan J. Blum, M.D. is a developmental - behavioral pediatrics physician with a practice address in Philadelphia, Pennsylvania, and NPI 1689694960, issued on Jul 20, 2006. Check the license (Pennsylvania MD042057L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1689694960
Name
Nathan J. Blum
Credential
M.D.
Primary taxonomy
Developmental - Behavioral Pediatrics Physician 2080P0006X
License number
MD042057L PA
Self-reported in NPPES; status is on the state search
Practice location
3550 Market St FL 3, Philadelphia, PA 19104
Phone
(267) 425-5200
Enumerated
Jul 20, 2006
Record last updated
Apr 15, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(267) 426-0975
Medicaid IDs
001464739 PA
6183701 NJ
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 3550 Market St FL 3

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

  1. Amanda Bennett, MDDevelopmental - Behavioral Pediatrics Physician1376754911
  2. Terri Brown-Whitehorn, M.D.Pediatric Allergy/Immunology Physician1659391167
  3. Antonella Cianferoni, MDPediatric Allergy/Immunology Physician1609993609
  4. Katelyn Clements, CRNPPediatric Nurse Practitioner1972870590
  5. James Corry, M.D.Pediatric Allergy/Immunology Physician1205827490
  6. Sigrid Daveiga, M.D.Pediatric Allergy/Immunology Physician1417162017

Verify Nathan J. Blum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD042057L    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 Pennsylvania license search

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Developmental - Behavioral Pediatrics Physician providers in Pennsylvania

There are 41 developmental - behavioral pediatrics physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 41 in Pennsylvania → Every provider in Philadelphia →

Other developmental - behavioral pediatrics physician records in Pennsylvania

  1. Allison Ballantine, M.D.Philadelphia, PA1013937606
  2. Anna Baumgaertel, M.D.Philadelphia, PA1073527966
  3. Amanda Bennett, MDPhiladelphia, PA1376754911
  4. Jane Beriont, MDPhiladelphia, PA1770045965
  5. Kathleen Campbell, M.D.Philadelphia, PA1023549607
  6. Mark Clayton, MDHershey, PA1528011582
  7. Alison Downes, M.D.Havertown, PA1659545887
  8. Maureen Fee, MDPhiladelphia, PA1558325589
  9. Monica Garrick Drago, MD, MSWSeven Fields, PA1720152978
  10. Marianne Glanzman, M.D.Philadelphia, PA1396767851

Common questions

What is Nathan J. Blum, M.D.'s NPI number?

Nathan J. Blum, M.D.'s National Provider Identifier (NPI) is 1689694960, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathan J. Blum, M.D. located?

The NPPES record lists a practice address at 3550 Market St FL 3, Philadelphia, PA, 19104. Phone: (267) 425-5200. Providers update this record themselves, so call before visiting.

How can I verify Nathan J. Blum, M.D.'s license?

NPPES lists Pennsylvania license number MD042057L, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.