Patty Peng-Jung Chi, MD
Allergy & Immunology Physician · Mountain View, CA
Patty Peng-Jung Chi, MD is an allergy & immunology physician with a practice address in Mountain View, California, and NPI 1407898323, issued on Jun 12, 2006. Check the license (California A82242, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Patty Peng-Jung Chi
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A82242 CA
Self-reported in NPPES; status is on the state search - Practice location
- 701 E EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 934-7888
- Enumerated
- Jun 12, 2006
- Record last updated
- Dec 21, 2022
- Medicaid ID
- 00A822420 CA
- Medicare enrollment
- Enrolled (PECOS I20050920000299); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 701 E EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aya Abou-Nasr, MDAnesthesiology Physician1982191672
- Jaimie Abraham, AGPCNP-BCFamily Nurse Practitioner1245757699
- Brooke Abrantes, PA-CSurgical Physician Assistant1316771298
- Faud Abuabara, M.D.MOHS-Micrographic Surgery Physician1164472890
- Felix Adler, M.D.Diagnostic Radiology Physician1801069729
- Olga Afanasiev, MD, PHDDermatology Physician1669869384
Verify Patty Peng-Jung Chi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A82242Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
418 Medicare Part D claims for 60 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Albuterol Sulfate Hfa44 claims
- Azelastine Hcl42 claims
- Montelukast Sodium33 claims
- Fluticasone Propionate30 claims
- Advair Hfa29 claims
- Dupixent Syringe27 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: $158.50
7 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Sutter Bay Medical FoundationMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patty Peng-Jung Chi among 444 allergy & immunology physician records in California
Patty Peng-Jung Chi, MD is one of 444 allergy & immunology physician records with a practice address in California. 79% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2004 among the 281 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in Mountain View → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Philippe Begin, M.D.Mountain View, CA 940401386065902
- Charles Feng, MDMountain View, CA 940401518260306
- Jamila Martin, M.D.Mountain View, CA 940401316164106
- Cindy Nguyen, D.O.Mountain View, CA 940401558893297
- Manjul Dixit, MDAtherton, CA 940271922064963
- Nancy Cummings, MDMenlo Park, CA 940251598728917
- Jenna Nguyen, MDMenlo Park, CA 940251437492147
- Anna Postolova, MDMenlo Park, CA 940251932475316
Common questions
What is Patty Peng-Jung Chi, MD's NPI number?
Patty Peng-Jung Chi, MD's National Provider Identifier (NPI) is 1407898323, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patty Peng-Jung Chi, MD located?
The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7888. Providers update this record themselves, so call before visiting.
How can I verify Patty Peng-Jung Chi, MD's license?
NPPES lists California license number A82242, 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 Patty Peng-Jung Chi, MD prescribe under Medicare Part D?
In 2024, Patty Peng-Jung Chi, MD had 418 Medicare Part D claims for 60 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.