NPPES file of Aug 9, 2026

Kathryn C. Humm, MD

Reproductive Endocrinology Physician · Rockville, MD

Kathryn C. Humm, MD is a reproductive endocrinology physician with a practice address in Rockville, Maryland, and NPI 1255594255, issued on Jul 9, 2008. Check the license (Maryland D77915, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255594255
Name
Kathryn C. Humm
Credential
MD
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License number
D77915 MD
Self-reported in NPPES; status is on the state search
Practice location
9601 Blackwell RD Ste 400, Rockville, MD 20850
Phone
(301) 340-1188
Enumerated
Jul 9, 2008
Record last updated
Jan 10, 2022
Fax
(855) 716-1603
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 9601 Blackwell RD Ste 400

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

  1. Sandy Li, M.D.Reproductive Endocrinology Physician1891817920
  2. Kimberly Pomerantz, PAMedical Physician Assistant1043801723

Verify Kathryn C. Humm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D77915
    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 Maryland 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $6,794.49

9 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 1,066 providers of this specialty with any payment received $1,086.52 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathryn Humm$6,794.49
  2. Specialty average$1,086.52

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

Kathryn C. Humm among 40 reproductive endocrinology physician records in Maryland

Kathryn C. Humm, MD is one of 40 reproductive endocrinology physician records with a practice address in Maryland. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 65% of them.

  • NPI issued2008 · 65% of these records are older, 28% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2022 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VE0102X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Reproductive Endocrinology Physician providers in Maryland

There are 40 reproductive endocrinology physician records in Maryland.

The 8 reproductive endocrinology physician records with the nearest ZIP codes

  1. Joseph Doyle, M.D.Rockville, MD 208501871650929
  2. Lisa Halvorson, MDRockville, MD 208501568412088
  3. Micah Hill, D.O.Rockville, MD 208501922081934
  4. Sandy Li, M.D.Rockville, MD 208501891817920
  5. Siu Ting Ng-Wagner, M.D.Rockville, MD 208501851491476
  6. Jeanne O'Brien, M.D.Rockville, MD 208501164503058
  7. Lauren Roth, MDRockville, MD 208501417003047
  8. Isaac Sasson, MD PHDRockville, MD 208501679741268

Common questions

What is Kathryn C. Humm, MD's NPI number?

Kathryn C. Humm, MD's National Provider Identifier (NPI) is 1255594255, issued on Jul 9, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn C. Humm, MD located?

The NPPES record lists a practice address at 9601 Blackwell RD Ste 400, Rockville, MD, 20850. Phone: (301) 340-1188. Providers update this record themselves, so call before visiting.

How can I verify Kathryn C. Humm, MD's license?

NPPES lists Maryland license number D77915, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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. 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.