Theresa Wen Wen Guo, M.D.
Otolaryngology Physician · San Diego, CA
Theresa Wen Wen Guo, M.D. is an otolaryngology physician with a practice address in San Diego, California, and NPI 1255694196, issued on Jun 15, 2012. Check the license (California A170293, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Theresa Wen Wen Guo
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- A170293 CA
1255694196 MD
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Jun 15, 2012
- Record last updated
- Nov 3, 2025
- Fax
- (888) 539-8781
- Medicare enrollment
- Enrolled (PECOS I20210728003327); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
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- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Theresa Wen Wen Guo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A170293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average otolaryngology physician in 2024
145 Medicare Part D claims for 59 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen13 claims
- Lidocaine Hcl Viscous13 claims
- Chlorhexidine Gluconate11 claims
- Oxycodone Hcl11 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.
Industry payments in 2024: $10,307.58
15 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Pharmaceuticals, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Wen Wen Guo among 1,212 otolaryngology physician records in California
Theresa Wen Wen Guo, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 2004 among the 818 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in San Diego → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Thomas Alexander, M.D.San Diego, CA 921031275696080
- Kevin Brumund, MDSan Diego, CA 921031033193669
- James Bush, MDSan Diego, CA 921031932108867
- Joseph Califano, M.D.San Diego, CA 921031881652972
- Charles Coffey, MDSan Diego, CA 921031932297330
- Sapideh Gilani, MDSan Diego, CA 921031003825571
- Paul Goodman, MDSan Diego, CA 921031700805124
- Jeffrey Harris, M.D.San Diego, CA 921031417988783
Common questions
What is Theresa Wen Wen Guo, M.D.'s NPI number?
Theresa Wen Wen Guo, M.D.'s National Provider Identifier (NPI) is 1255694196, issued on Jun 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Wen Wen Guo, M.D. located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Theresa Wen Wen Guo, M.D.'s license?
NPPES lists California license number A170293, 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 Theresa Wen Wen Guo, M.D. prescribe under Medicare Part D?
In 2024, Theresa Wen Wen Guo, M.D. had 145 Medicare Part D claims for 59 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
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.