Mark Steven Sugar, M.D.
Allergy Physician · Laguna Niguel, CA
Mark Steven Sugar, M.D. is an allergy physician with a practice address in Laguna Niguel, California, and NPI 1013959253, issued on Jun 12, 2006. Check the license (California C032628, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Steven Sugar
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- C032628 CA
Self-reported in NPPES; status is on the state search - Practice location
- 28202 Cabot RD Ste 105, Laguna Niguel, CA 92677
- Phone
- (949) 364-2900
- Enumerated
- Jun 12, 2006
- Record last updated
- Jul 11, 2025
- Fax
- (949) 365-0117
- Medicare enrollment
- Enrolled (PECOS I20040518001617); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 157 in California → Look up another NPI →
Also registered at 28202 Cabot RD Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Warner Carr, MDAllergy Physician1184798001
- Christine Lee-Kim, D.O.Allergy Physician1174881346
- Vinay Mehta, M.D.Allergy & Immunology Physician1225106255
- Craig WooPhysician Assistant1063131852
Verify Mark Steven Sugar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C032628Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average allergy physician in 2024
814 Medicare Part D claims for 149 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Azelastine Hcl83 claims
- Montelukast Sodium69 claims
- Albuterol Sulfate Hfa67 claims
- Advair Hfa51 claims
- Fluticasone Propionate51 claims
- Spiriva Respimat40 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): 80.3 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: $593.64
23 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 502 providers of this specialty with any payment received $9,080.33 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.
Bills Medicare through one group practice
- Allergy And Asthma Associates OF Southern Calif IncMission Viejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Steven Sugar among 157 allergy physician records in California
Mark Steven Sugar, M.D. is one of 157 allergy physician records with a practice address in California. 69% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 31% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1969 · median 1992 among the 82 with a school on file
- Record last updated2025 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in California
There are 157 allergy physician records in California.
All 157 in California → Every provider in Laguna Niguel → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Warner Carr, MDLaguna Niguel, CA 926771184798001
- Christine Lee-Kim, D.O.Laguna Niguel, CA 926771174881346
- William Berger, M.D.Mission Viejo, CA 926911538260583
- Geeta Venkat, M.D.Mission Viejo, CA 926911588774954
- Gillian Bassirpour, MDAliso Viejo, CA 926561811216765
- Bruce Friedman, MDFountain Valley, CA 927081457345225
- Rhonda Myers, M.D.Irvine, CA 926041467404038
- Chittur Easwaran, M.DAnaheim, CA 928041750314993
Common questions
What is Mark Steven Sugar, M.D.'s NPI number?
Mark Steven Sugar, M.D.'s National Provider Identifier (NPI) is 1013959253, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Steven Sugar, M.D. located?
The NPPES record lists a practice address at 28202 Cabot RD Ste 105, Laguna Niguel, CA, 92677. Phone: (949) 364-2900. Providers update this record themselves, so call before visiting.
How can I verify Mark Steven Sugar, M.D.'s license?
NPPES lists California license number C032628, 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 Mark Steven Sugar, M.D. prescribe under Medicare Part D?
In 2024, Mark Steven Sugar, M.D. had 814 Medicare Part D claims for 149 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
What is Mark Steven Sugar, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.3 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.