Spencer King, MD
Family Medicine Physician · Longmont, CO
Spencer King, MD is a family medicine physician with a practice address in Longmont, Colorado, and NPI 1548265655, issued on Jun 15, 2005. Check the license (Colorado 21911, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Spencer King
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 21911 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1925 W Mountain View Ave, Longmont, CO 80501
- Phone
- (303) 776-1234
- Enumerated
- Jun 15, 2005
- Record last updated
- Mar 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (720) 494-3107
- Medicaid ID
- 01308576 CO
- Medicare enrollment
- Enrolled (PECOS I20040325001028); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 1988
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1925 W Mountain View Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Spencer King in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 21911Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
49 Medicare Part D claims for 42 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 70.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Pahs Onpoint Urgent Care LLCAurora, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer King among 3,563 family medicine physician records in Colorado
Spencer King, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1988 · median 2008 among the 2,077 with a school on file
- Record last updated2015 · 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).
73 family medicine physician records list a practice address in Longmont
They are 73 of the 2,381 NPPES records with a practice address in Longmont, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Longmont → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eric Benson, MDLongmont, CO 805011487658878
- David Britt, MDLongmont, CO 805011427052836
- Catherine Cavender, MDLongmont, CO 805011295739613
- Mary Faini, MDLongmont, CO 805011144222373
- James Freudenburg, MDLongmont, CO 805011710982137
- John Fritz, D.O.Longmont, CO 805011487655478
- Mark Hinman, M.D.Longmont, CO 805011750385415
- Richard Jacobi, MDLongmont, CO 805011639174733
Common questions
What is Spencer King, MD's NPI number?
Spencer King, MD's National Provider Identifier (NPI) is 1548265655, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Spencer King, MD located?
The NPPES record lists a practice address at 1925 W Mountain View Ave, Longmont, CO, 80501. Phone: (303) 776-1234. Providers update this record themselves, so call before visiting.
How can I verify Spencer King, MD's license?
NPPES lists Colorado license number 21911, 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 Spencer King, MD prescribe under Medicare Part D?
In 2024, Spencer King, MD had 49 Medicare Part D claims for 42 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Spencer King, MD's MIPS final score?
The 2023 MIPS final score is 70.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.