NPPES file of Aug 9, 2026

Ian Sebastian Bach, MD

Family Medicine Physician · Parker, CO

Ian Sebastian Bach, MD is a family medicine physician with a practice address in Parker, Colorado, and NPI 1003895293, issued on Jan 16, 2006. Check the license (Colorado 35490, as entered in NPPES) on the Colorado Medical Board; 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
1003895293
Name
Ian Sebastian Bach
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
35490 CO
Self-reported in NPPES; status is on the state search
Practice location
19964 Hilltop RD Ste A, Parker, CO 80134
Phone
(303) 841-2212
Enumerated
Jan 16, 2006
Record last updated
Jan 12, 2023
Fax
(303) 841-4716
Medicaid IDs
01354901 CO
04020541 CO
Medicare enrollment
Enrolled (PECOS I20050117000332); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 19964 Hilltop RD Ste A

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

  1. Kayleigh Belsey, PA-CPhysician Assistant1912416603
  2. Allison Kemp, PA-CPhysician Assistant1447788971
  3. Alesha KreutterPhysician Assistant1255990610
  4. Helen Markley, M.D.Family Medicine Physician1205076585
  5. Anna Miller, PA-CMedical Physician Assistant1477065548
  6. Mary Nguyen, M.D.Family Medicine Physician1386811362

Verify Ian Sebastian Bach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 35490
    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 Colorado 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.

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88% fewer Medicare Part D claims than the average family medicine physician in 2024

409 Medicare Part D claims for 103 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Ian Bach409
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium30 claims
  2. Lisinopril30 claims
  3. Rosuvastatin Calcium21 claims
  4. Amlodipine Besylate18 claims
  5. Levothyroxine Sodium15 claims
  6. Metformin Hcl14 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.

Bills Medicare through one group practice

  1. Poudre Valley Medical Group LLCParker, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ian Sebastian Bach among 3,563 family medicine physician records in Colorado

Ian Sebastian Bach, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 56% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1995 · median 2008 among the 2,077 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

61 family medicine physician records list a practice address in Parker

They are 61 of the 1,871 NPPES records with a practice address in Parker, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Elizabeth Clark, D.O., MPH & TMParker, CO 801341134195993
  2. Charlie Dickman, MDParker, CO 801341205832433
  3. Patricia Fahey, M.D.Parker, CO 801341083655450
  4. Sivarama Guntur, MDParker, CO 801341003865676
  5. Lisa Ingram, M.D.Parker, CO 801341841217650
  6. John Morrison, M.D.Parker, CO 801341720049604
  7. Leto Quarles, M.D.Parker, CO 801341811917883
  8. Amy Scanlan, MDParker, CO 801341811994783

Common questions

What is Ian Sebastian Bach, MD's NPI number?

Ian Sebastian Bach, MD's National Provider Identifier (NPI) is 1003895293, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ian Sebastian Bach, MD located?

The NPPES record lists a practice address at 19964 Hilltop RD Ste A, Parker, CO, 80134. Phone: (303) 841-2212. Providers update this record themselves, so call before visiting.

How can I verify Ian Sebastian Bach, MD's license?

NPPES lists Colorado license number 35490, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ian Sebastian Bach, MD prescribe under Medicare Part D?

In 2024, Ian Sebastian Bach, MD had 409 Medicare Part D claims for 103 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.