NPPES file of Aug 9, 2026

Spencer T. Mellum, DO

Anesthesiology Physician · Carson City, NV

Spencer T. Mellum, DO is an anesthesiology physician with a practice address in Carson City, Nevada, and NPI 1811002793, issued on Aug 20, 2006. Check the license (Nevada 1232, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811002793
Name
Spencer T. Mellum
Credential
DO
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
1232 NV
Self-reported in NPPES; status is on the state search
Practice location
1600 Medical Pkwy, Carson City, NV 89703
Phone
(702) 878-0070
Enumerated
Aug 20, 2006
Record last updated
Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(702) 209-2064
Medicaid ID
1811002793 NV
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 1600 Medical Pkwy

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

  1. Ricardo Almaguer, DOHospitalist Physician1700974987
  2. Lindsey Aning, APRNAcute Care Nurse Practitioner1699418889
  3. Michael Antonelli, DOAnesthesiology Physician1831218148
  4. John Anxo, MDAnesthesiology Physician1558381731
  5. Alexander Azzam, MDInternal Medicine Physician1306309935
  6. Hak-Sun Bak, MDAnesthesiology Physician1033124680

Verify Spencer T. Mellum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license 1232
    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 Nevada license search

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The MIPS final score for 2023 (Medicare payment program): 91.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%96.9
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Spencer T. Mellum among 536 anesthesiology physician records in Nevada

Spencer T. Mellum, DO is one of 536 anesthesiology physician records with a practice address in Nevada. 79% 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 18% of them.

  • NPI issued2006 · 18% of these records are older, 49% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2018 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 anesthesiology physician records list a practice address in Carson City

They are 18 of the 1,556 NPPES records with a practice address in Carson City, and 536 anesthesiology physician records in Nevada.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Michael Antonelli, DOCarson City, NV 897031831218148
  2. John Anxo, MDCarson City, NV 897031558381731
  3. Hak-Sun Bak, MDCarson City, NV 897031033124680
  4. Bruce Baldecchi, MDCarson City, NV 897031295755544
  5. John Drexler, D.O.Carson City, NV 897031548415268
  6. Darin Flynn, M.D.Carson City, NV 897031306034020
  7. Daniel Hasfurther, MDCarson City, NV 897031144273756
  8. Jeffrey Heinemann, M.D.Carson City, NV 897031356392138

Common questions

What is Spencer T. Mellum, DO's NPI number?

Spencer T. Mellum, DO's National Provider Identifier (NPI) is 1811002793, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Spencer T. Mellum, DO located?

The NPPES record lists a practice address at 1600 Medical Pkwy, Carson City, NV, 89703. Phone: (702) 878-0070. Providers update this record themselves, so call before visiting.

How can I verify Spencer T. Mellum, DO's license?

NPPES lists Nevada license number 1232, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Spencer T. Mellum, DO's MIPS final score?

The 2023 MIPS final score is 91.6 of 100. 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.