NPPES file of Aug 9, 2026

William Lopez, M.D.

Internal Medicine Physician · Loveland, CO

William Lopez, M.D. is an internal medicine physician with a practice address in Loveland, Colorado, and NPI 1023015807, issued on Jul 7, 2005. Check the license (Colorado 20787, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023015807
Name
William Lopez
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20787 CO
Self-reported in NPPES; status is on the state search
Practice location
2500 Rocky Mountain Ave, Loveland, CO 80538
Phone
(970) 203-7050
Enumerated
Jul 7, 2005
Record last updated
Mar 23, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(970) 203-7055
Medicaid ID
01207877 CO
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.
Download card Updates feed

8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →

Also registered at 2500 Rocky Mountain Ave

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

  1. Eva Abram, CNM, NPAdvanced Practice Midwife1881232833
  2. Claire Aksamit, PA-CPhysician Assistant1871089235
  3. Grace Alessi, MDInternal Medicine Physician1457381964
  4. Sarah Ashmore, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1790274280
  5. Nathan Ayer, M.D., M.P.H.Internal Medicine Physician1457361172
  6. Jessica Bare, D.O.Obstetrics & Gynecology Physician1528357209

Verify William Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 20787    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

William Lopez among 2,046 internal medicine physician records in Colorado

William Lopez, M.D. 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2016 · 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).

28 internal medicine physician records list a practice address in Loveland

They are 28 of the 2,113 NPPES records with a practice address in Loveland, and 2,046 internal medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,046 in Colorado → Every provider in Loveland → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Grace Alessi, MDLoveland, CO 805381457381964
  2. Nathan Ayer, M.D., M.P.H.Loveland, CO 805381457361172
  3. Sheila Copple, D.O.Loveland, CO 805381255384087
  4. Julia Cuervo, M.D.Loveland, CO 805381275500787
  5. Sarvin Emami, MDLoveland, CO 805381154304376
  6. Bertrand Honea, M.D.Loveland, CO 805381194742981
  7. Kevin Keefe, DOLoveland, CO 805381689663684
  8. Joel ParlimentLoveland, CO 805381851374011

Common questions

What is William Lopez, M.D.'s NPI number?

William Lopez, M.D.'s National Provider Identifier (NPI) is 1023015807, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Lopez, M.D. located?

The NPPES record lists a practice address at 2500 Rocky Mountain Ave, Loveland, CO, 80538. Phone: (970) 203-7050. Providers update this record themselves, so call before visiting.

How can I verify William Lopez, M.D.'s license?

NPPES lists Colorado license number 20787, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.