NPPES file of Aug 9, 2026

Christine C. Hansen, M.D.

Gynecology Physician · Boulder, CO

Christine C. Hansen, M.D. is a gynecology physician with a practice address in Boulder, Colorado, and NPI 1447362553, issued on Aug 31, 2006. Check the license (Colorado 35782, 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
1447362553
Name
Christine C. Hansen
Credential
M.D.
Primary taxonomy
Gynecology Physician 207VG0400X
License number
35782 CO
Self-reported in NPPES; status is on the state search
Practice location
4745 Arapahoe Ave Ste 110, Boulder, CO 80303
Phone
(303) 444-5110
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(303) 444-7457
Medicare enrollment
Enrolled (PECOS I20040426000882); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 1993
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 4745 Arapahoe Ave Ste 110

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

  1. Sarah Curzon, PA-CPhysician Assistant1134695745
  2. Madison Lohmann, WHCNPWomen's Health Nurse Practitioner1174485650
  3. Mary Macsalka, M.D.Gynecology Physician1205942422
  4. Catherine Ryan, M.D.Gynecology Physician1730295940
  5. Lauren Weaver, P.A.Physician Assistant1073887121

Verify Christine C. Hansen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 35782
    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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24% more Medicare Part D claims than the average gynecology physician in 2024

370 Medicare Part D claims for 97 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Christine Hansen370
  2. Specialty average299

Most prescribed

  1. Estradiol83 claims
  2. Progesterone57 claims
  3. Estradiol (Twice Weekly)37 claims
  4. Estring25 claims
  5. Dotti23 claims
  6. Levothyroxine Sodium18 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.

Industry payments in 2024: $170.12

4 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 1,398 providers of this specialty with any payment received $2,469.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christine Hansen$170.12
  2. Specialty average$2,469.88

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

Christine C. Hansen among 52 gynecology physician records in Colorado

Christine C. Hansen, M.D. is one of 52 gynecology physician records with a practice address in Colorado. 46% 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 23% of them.

  • NPI issued2006 · 23% of these records are older, 31% newer
  • In a Medicare fileYes · 46% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1993 · median 1998 among the 13 with a school on file
  • Record last updated2007 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecology Physician providers in Colorado

There are 52 gynecology physician records in Colorado.

The 8 gynecology physician records with the nearest ZIP codes

  1. John Imig, M.D.Boulder, CO 803031801870530
  2. Mary Macsalka, M.D.Boulder, CO 803031205942422
  3. Catherine Ryan, M.D.Boulder, CO 803031730295940
  4. Ruth Weinberg, M.D.Boulder, CO 803011639305873
  5. Ann Mattson, MDBoulder, CO 803091912085952
  6. Gretchen Bruno, MDDenver, CO 802471518094556
  7. Paula VasichkoDenver, CO 802381508355975
  8. Ray Gottesfeld, M.D.Denver, CO 802201588932008

Common questions

What is Christine C. Hansen, M.D.'s NPI number?

Christine C. Hansen, M.D.'s National Provider Identifier (NPI) is 1447362553, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christine C. Hansen, M.D. located?

The NPPES record lists a practice address at 4745 Arapahoe Ave Ste 110, Boulder, CO, 80303. Phone: (303) 444-5110. Providers update this record themselves, so call before visiting.

How can I verify Christine C. Hansen, M.D.'s license?

NPPES lists Colorado license number 35782, 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 Christine C. Hansen, M.D. prescribe under Medicare Part D?

In 2024, Christine C. Hansen, M.D. had 370 Medicare Part D claims for 97 beneficiaries; the average among gynecology physician prescribers was 299. 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.