Erin Kathleen Ham, MD
Allergy Physician · Helena, MT
Erin Kathleen Ham, MD is an allergy physician with a practice address in Helena, Montana, and NPI 1154642817, issued on Jun 17, 2010. Check the license (Montana 38578, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Erin Kathleen Ham
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- 38578 MT
Self-reported in NPPES; status is on the state search - Practice location
- 2550 E Broadway St, Helena, MT 59601
- Phone
- (406) 457-4180
- Enumerated
- Jun 17, 2010
- Record last updated
- Jun 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 207K00000X MT
- Entity
- Type 1 · individual
2 nearest allergy physician records → All 3 in Montana → Look up another NPI →
Also registered at 2550 E Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Bailey, M.D.Family Medicine Physician1083717888
- Britt Ballinger, NPNurse Practitioner1265752679
- Rebecca Barringer, PAPhysician Assistant1659060150
- Mikael Bedell, M.D.Family Medicine Physician1871665752
- James Bennett, M.D.Rheumatology Physician1588920896
- Reece Brandon, PT, DPT, MPHPhysical Therapist1689472250
Verify Erin Kathleen Ham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 38578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average allergy physician in 2024
434 Medicare Part D claims, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Losartan Potassium30 claims
- Triamcinolone Acetonide24 claims
- Alcohol Prep Pads20 claims
- Amlodipine Besylate20 claims
- Atorvastatin Calcium18 claims
- Metformin Hcl Er17 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.
Allergy Physician providers in Montana
There are 3 allergy physician records in Montana.
All 3 in Montana → Every provider in Helena → Allergy Physician nationwide →
The 2 allergy physician records with the nearest ZIP codes
- Richard Buswell, M.D.Helena, MT 596011902886237
- George Lanske, MDBillings, MT 591011053353755
Common questions
What is Erin Kathleen Ham, MD's NPI number?
Erin Kathleen Ham, MD's National Provider Identifier (NPI) is 1154642817, issued on Jun 17, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Erin Kathleen Ham, MD located?
The NPPES record lists a practice address at 2550 E Broadway St, Helena, MT, 59601. Phone: (406) 457-4180. Providers update this record themselves, so call before visiting.
How can I verify Erin Kathleen Ham, MD's license?
NPPES lists Montana license number 38578, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erin Kathleen Ham, MD prescribe under Medicare Part D?
In 2024, Erin Kathleen Ham, MD had 434 Medicare Part D claims; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
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.