NPPES file of Aug 9, 2026

Nathaniel Lloyd Crump, M.D.

Obstetrics & Gynecology Physician · Chicago, IL

Nathaniel Lloyd Crump, M.D. is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1992718241, issued on Aug 15, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1992718241
Name
Nathaniel Lloyd Crump
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-9200
Enumerated
Aug 15, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(773) 702-0840
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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8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →

Also registered at 5841 S Maryland Ave

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

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  2. Rouzbeh AbbasgholizadehRetina Specialist (Ophthalmology) Physician1881510030
  3. Jehad Abdalla, MDSleep Medicine (Internal Medicine) Physician1053898684
  4. Sara Abdelaziz, MDEndocrinology, Diabetes & Metabolism Physician1598258089
  5. Noor Abdelrahman, PA-CPhysician Assistant1851012413
  6. Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240

Verify Nathaniel Lloyd Crump in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois license search

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Nathaniel Lloyd Crump among 2,062 obstetrics & gynecology physician records in Illinois

Nathaniel Lloyd Crump, M.D. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileNo · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

700 obstetrics & gynecology physician records list a practice address in Chicago

They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,062 in Illinois → Every provider in Chicago → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Ayman Al-HendyChicago, IL 606371023184637
  2. Monica ChristmasChicago, IL 606371780637827
  3. David ClaudChicago, IL 606371578518759
  4. Perpetua GoodallChicago, IL 606371700999828
  5. Catherine Harth, M.D.Chicago, IL 606371205934122
  6. Natasha Jenkins Cooper, M.D.Chicago, IL 606371285736736
  7. Katrina LeeChicago, IL 606371841296530
  8. Stacy LindauChicago, IL 606371104855014

Common questions

What is Nathaniel Lloyd Crump, M.D.'s NPI number?

Nathaniel Lloyd Crump, M.D.'s National Provider Identifier (NPI) is 1992718241, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Lloyd Crump, M.D. located?

The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-9200. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Lloyd Crump, M.D.'s license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. 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.