John Thomas Grissom, M.D.
Interventional Pain Medicine Physician · Wasilla, AK
John Thomas Grissom, M.D. is an interventional pain medicine physician with a practice address in Wasilla, Alaska, and NPI 1598789513, issued on Jul 26, 2006. Check the license (Alaska 6558, as entered in NPPES) on the Alaska State Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Thomas Grissom
- Credential
- M.D.
- Primary taxonomy
- Interventional Pain Medicine Physician 208VP0014X
- License numbers
- 6558 AK
M-7402 ID
Self-reported in NPPES; status is on the state search - Practice location
- 3066 E Meridian Park Loop # 1, Wasilla, AK 99654
- Phone
- (907) 373-9460
- Enumerated
- Jul 26, 2006
- Record last updated
- Nov 5, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (907) 373-9461
- Medicaid ID
- MD0853 AK
- Entity
- Type 1 · individual
7 nearest interventional pain medicine physician records → All 8 in Alaska → Look up another NPI →
Verify John Thomas Grissom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlaska State Medical Board
Search for license 6558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024
167 Medicare Part D claims for 69 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. 110 claims were for opioids.
Most prescribed
- Oxycodone Hcl35 claims
- Morphine Sulfate Er22 claims
- Hydrocodone-Acetaminophen15 claims
- Methadone Hcl13 claims
- Oxycodone-Acetaminophen13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 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).
Industry payments in 2024: $146.55
5 payments; by number, the most common kind was food and beverage; the largest payer was Vertos Medical, Inc. The 1,966 providers of this specialty with any payment received $3,889.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Interventional Pain Medicine Physician providers in Alaska
There are 8 interventional pain medicine physician records in Alaska.
All 8 in Alaska → Every provider in Wasilla → Interventional Pain Medicine Physician nationwide →
The 7 interventional pain medicine physician records with the nearest ZIP codes
- Andrew Jaconette, M.D.Wasilla, AK 996541487778304
- Eric Severson, PA-CWasilla, AK 996541790776599
- Christopher Gay, M.D.Fairbanks, AK 997011881848240
- Steven Johnson, MDAnchorage, AK 995081710963681
- Lawrence Kropp, M.D.Anchorage, AK 995081134146806
- Luke Liu, M.D.Anchorage, AK 995081942413349
- Derek Bradley, M.D.Jber, AK 995061306263728
Common questions
What is John Thomas Grissom, M.D.'s NPI number?
John Thomas Grissom, M.D.'s National Provider Identifier (NPI) is 1598789513, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Grissom, M.D. located?
The NPPES record lists a practice address at 3066 E Meridian Park Loop # 1, Wasilla, AK, 99654. Phone: (907) 373-9460. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Grissom, M.D.'s license?
NPPES lists Alaska license number 6558, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Thomas Grissom, M.D. prescribe under Medicare Part D?
In 2024, John Thomas Grissom, M.D. had 167 Medicare Part D claims for 69 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. Part D covers Medicare prescriptions only.
What is John Thomas Grissom, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.5 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.