NPPES file of Aug 9, 2026

Ruth Kibbee Weinberg, M.D.

Gynecology Physician · Boulder, CO

Ruth Kibbee Weinberg, M.D. is a gynecology physician with a practice address in Boulder, Colorado, and NPI 1639305873, issued on Jun 2, 2009. Check the license (Colorado 35265, 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
1639305873
Name
Ruth Kibbee Weinberg
Credential
M.D.
Primary taxonomy
Gynecology Physician 207VG0400X
License number
35265 CO
Self-reported in NPPES; status is on the state search
Practice location
2855 Valmont RD, Boulder, CO 80301
Phone
(303) 442-5160
Enumerated
Jun 2, 2009
Record last updated
Aug 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(303) 440-8769
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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Also registered at 2855 Valmont RD

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

  1. Gabriela Al-Shamma, RNRegistered Nurse1912725680
  2. Merylee Appel, N.P.Women's Health Nurse Practitioner1164641247
  3. Natalie BergnerRegistered Nurse1316717648
  4. Ella Cook, NPWomen's Health Nurse Practitioner1477322501
  5. Sherry Dubuisson, NURSE PRACTITIONERNurse Practitioner1578517900
  6. Diana Grushan, RNAmbulatory Women's Health Care Registered Nurse1366858136

Verify Ruth Kibbee Weinberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 35265
    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

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58% fewer Medicare Part D claims than the average gynecology physician in 2024

125 Medicare Part D claims for 45 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Ruth Weinberg125
  2. Specialty average299

Most prescribed

  1. Estradiol43 claims
  2. Progesterone21 claims
  3. Estradiol (Twice Weekly)19 claims
  4. Premarin11 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.

Ruth Kibbee Weinberg among 52 gynecology physician records in Colorado

Ruth Kibbee Weinberg, 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 2009, is newer than 88% of them.

  • NPI issued2009 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 46% of these records are
  • In the CMS Doctors and Clinicians fileNo · 25% of these records are
  • Record last updated2021 · 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. Christine Hansen, M.D.Boulder, CO 803031447362553
  2. John Imig, M.D.Boulder, CO 803031801870530
  3. Mary Macsalka, M.D.Boulder, CO 803031205942422
  4. Catherine Ryan, M.D.Boulder, CO 803031730295940
  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 Ruth Kibbee Weinberg, M.D.'s NPI number?

Ruth Kibbee Weinberg, M.D.'s National Provider Identifier (NPI) is 1639305873, issued on Jun 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ruth Kibbee Weinberg, M.D. located?

The NPPES record lists a practice address at 2855 Valmont RD, Boulder, CO, 80301. Phone: (303) 442-5160. Providers update this record themselves, so call before visiting.

How can I verify Ruth Kibbee Weinberg, M.D.'s license?

NPPES lists Colorado license number 35265, 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 Ruth Kibbee Weinberg, M.D. prescribe under Medicare Part D?

In 2024, Ruth Kibbee Weinberg, M.D. had 125 Medicare Part D claims for 45 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.