Susan I. Fixman, MD
Internal Medicine Physician · Lakewood, CO
Susan I. Fixman, MD is an internal medicine physician with a practice address in Lakewood, Colorado, and NPI 1184768970, issued on Feb 16, 2007. Check the license (Colorado 31877, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Susan I. Fixman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 31877 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8383 W Alameda Ave, Lakewood, CO 80226
- Phone
- (303) 338-4545
- Enumerated
- Feb 16, 2007
- Record last updated
- May 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 01318773 CO
- Medicare enrollment
- Enrolled (PECOS I20080313000149); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 8383 W Alameda Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jehan Abuzer, RNRegistered Nurse1437344462
- James Adams, M.D.Internal Medicine Physician1154460558
- Sharon AdcockInternal Medicine Physician1710014774
- Mohammed Akbani, NPFamily Nurse Practitioner1144637976
- Tanya AlaleLicensed Practical Nurse1881890275
- Jasmine Aldrich, PAPhysician Assistant1659401412
Verify Susan I. Fixman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 31877Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average internal medicine physician in 2024
8,905 Medicare Part D claims for 745 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 551 claims were for opioids.
Most prescribed
- Atorvastatin Calcium705 claims
- Levothyroxine Sodium459 claims
- Lisinopril427 claims
- Amlodipine Besylate303 claims
- Omeprazole284 claims
- Rosuvastatin Calcium284 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
- Colorado Permanente Medical Group PCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan I. Fixman among 2,046 internal medicine physician records in Colorado
Susan I. Fixman, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1989 · median 2006 among the 1,090 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 internal medicine physician records list a practice address in Lakewood
They are 73 of the 4,944 NPPES records with a practice address in Lakewood, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Lakewood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Adams, M.D.Lakewood, CO 802261154460558
- Joan BodakLakewood, CO 802261679617393
- Haidi Demain, MDLakewood, CO 802261528105806
- Patricia Flood-Speidel, M.D.Lakewood, CO 802261285778902
- Barbara LeeLakewood, CO 802261174667968
- Judith Lindauer-GosikLakewood, CO 802261124162904
- Katherine Lu, MDLakewood, CO 802261366405870
- Lianne Marks, M.D., PH.D.Lakewood, CO 802261114918349
Common questions
What is Susan I. Fixman, MD's NPI number?
Susan I. Fixman, MD's National Provider Identifier (NPI) is 1184768970, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Susan I. Fixman, MD located?
The NPPES record lists a practice address at 8383 W Alameda Ave, Lakewood, CO, 80226. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Susan I. Fixman, MD's license?
NPPES lists Colorado license number 31877, 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 Susan I. Fixman, MD prescribe under Medicare Part D?
In 2024, Susan I. Fixman, MD had 8,905 Medicare Part D claims for 745 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.