Keith Mark Gross, MD
Dermatology Physician · Victorville, CA
Keith Mark Gross, MD is a dermatology physician with a practice address in Victorville, California, and NPI 1952357188, issued on May 26, 2006. Check the license (California G63544, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Keith Mark Gross
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- G63544 CA
7006 NV
Self-reported in NPPES; status is on the state search - Practice location
- 12550 Hesperia RD, Victorville, CA 92395
- Phone
- (909) 335-8638
- Enumerated
- May 26, 2006
- Record last updated
- Jun 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (909) 335-8644
- Medicare enrollment
- Enrolled (PECOS I20050126001031); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 12550 Hesperia RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Travis Inglis, D.O.Emergency Medicine Physician1881934503
- Nelson Rosales, D.O.Family Medicine Physician1275582892
Verify Keith Mark Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G63544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average dermatology physician in 2024
1,176 Medicare Part D claims for 711 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin480 claims
- Minocycline Hcl138 claims
- Triamcinolone Acetonide95 claims
- Mometasone Furoate91 claims
- Mupirocin60 claims
- Betamethasone Dipropionate40 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Keith Mark Gross MD IncUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keith Mark Gross among 2,083 dermatology physician records in California
Keith Mark Gross, MD is one of 2,083 dermatology physician records with a practice address in California. 83% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1987 · median 2006 among the 1,450 with a school on file
- Record last updated2018 · 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 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Victorville → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Liza Gill, M.D.Victorville, CA 923951508240458
- Richard Le, DOVictorville, CA 923951417070566
- Hai Tran, M.D.Victorville, CA 923951093763104
- Richard Doty, M.D.Yucaipa, CA 923991124053707
- Jeffrey Rattet, MDSan Bernardino, CA 924041427199785
- Michael Lipp, D.O.Redlands, CA 923731629483516
- Mia Luna, M.D.Redlands, CA 923731508996141
- Jane CantosLoma Linda, CA 923571043391576
Common questions
What is Keith Mark Gross, MD's NPI number?
Keith Mark Gross, MD's National Provider Identifier (NPI) is 1952357188, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith Mark Gross, MD located?
The NPPES record lists a practice address at 12550 Hesperia RD, Victorville, CA, 92395. Phone: (909) 335-8638. Providers update this record themselves, so call before visiting.
How can I verify Keith Mark Gross, MD's license?
NPPES lists California license number G63544, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Keith Mark Gross, MD prescribe under Medicare Part D?
In 2024, Keith Mark Gross, MD had 1,176 Medicare Part D claims for 711 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Keith Mark Gross, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.