NPPES file of Aug 9, 2026

Deena Elwan, M.D.

Obstetrics & Gynecology Physician · Santa Maria, CA

Deena Elwan, M.D. is an obstetrics & gynecology physician with a practice address in Santa Maria, California, and NPI 1588190227, issued on May 1, 2017. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588190227
Name
Deena Elwan
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
MDR-#### HI
Self-reported in NPPES; status is on the state search
Practice location
220 S Palisade Dr Ste 203, Santa Maria, CA 93454
Phone
(805) 354-7101
Enumerated
May 1, 2017
Record last updated
Jan 8, 2025
Fax
(805) 354-7102
Medicare enrollment
Enrolled (PECOS I20211111001360); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 220 S Palisade Dr Ste 203

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

  1. Mona Bazargan, D.O.Obstetrics & Gynecology Physician1437502499
  2. Taimur Chaudhry, MDObstetrics & Gynecology Physician1043355910
  3. Xinyue Chen, DOObstetrics & Gynecology Physician1356920557
  4. Aimee De Guzman, CNMAdvanced Practice Midwife1093512378
  5. Jennifer GravesFamily Nurse Practitioner1639682057
  6. Amelia Grover, LCSWClinical Social Worker1437326170

Verify Deena Elwan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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 California 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.

84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

26 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Deena Elwan26
  2. Specialty average165

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 MIPS final score for 2023 (Medicare payment program): 96.5 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 score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. County OF RiversidePalm Springs, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

39 obstetrics & gynecology physician records list a practice address in Santa Maria

They are 39 of the 3,047 NPPES records with a practice address in Santa Maria, and 5,088 obstetrics & gynecology physician records in California.

Other obstetrics & gynecology physician records in California

  1. Ingrid Aalami, MDSan Jose, CA1952376550
  2. Avisa Abaian- Eagar, M.D.Orange, CA1316057755
  3. Derek Abbassi, MDWalnut Creek, CA1841364155
  4. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  5. Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
  6. Nicole Abell, DOVentura, CA1811243603
  7. Zachary AbelsonLos Angeles, CA1689237414
  8. Ray Abinader, M.D.Loma Linda, CA1770901548
  9. Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
  10. Nada Abou-HaibaLos Angeles, CA1134067549

Common questions

What is Deena Elwan, M.D.'s NPI number?

Deena Elwan, M.D.'s National Provider Identifier (NPI) is 1588190227, issued on May 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Deena Elwan, M.D. located?

The NPPES record lists a practice address at 220 S Palisade Dr Ste 203, Santa Maria, CA, 93454. Phone: (805) 354-7101. Providers update this record themselves, so call before visiting.

How can I verify Deena Elwan, M.D.'s license?

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 Deena Elwan, M.D. prescribe under Medicare Part D?

In 2024, Deena Elwan, M.D. had 26 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Deena Elwan, M.D.'s MIPS final score?

The 2023 MIPS final score is 96.5 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.