Mengying Guo
- Medicare services, 2023
- 71
- Part D claims, 2024
- 56
- Hospital affiliations
- 1
- Industry payments
- $133
- Medical groups
- 2
- Practice address
- 26800 Crown Valley Pkwy Suite 205 Suite 205, Mission Viejo, CA 92691-6384
- Practice phone
- Call (949) 364-3330
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy)
Primary care practice · Mission Viejo, California
Find Mengying Guo's professional email, personal email and mobile number
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Mengying Guo is an internist in Los Angeles, California
Mengying Guo practices at Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy) in Mission Viejo, California.
Mengying Guo's NPI, 1235664301, was assigned on April 26, 2017. Mengying Guo graduated from Medical College of Wisconsin in 2017. Mengying Guo holds California license A158952.
- NPI
- 1235664301NPI Registry (opens in a new tab)
- NPI enumeration date
- April 26, 2017
- NPI status
- Active
- Practice phone
- (949) 364-3330
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mengying Guo practices in Mission Viejo and Los Angeles
Mengying Guo's primary practice is Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy), at 26800 Crown Valley Pkwy Suite 205 Suite 205, Mission Viejo, CA 92691-6384. The practice phone is (949) 364-3330. The NPI Registry lists Mengying Guo's practice address as 1500 N San Pablo St, Los Angeles, CA 90033.
- Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy)Primary26800 Crown Valley Pkwy Suite 205 Suite 205, Mission Viejo, CA 92691-6384Phone(949) 364-3330
- NPI Registry address1500 N San Pablo St, Los Angeles, CA 90033 · Los Angeles CountyPhone(310) 222-2401
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Mengying Guo is affiliated with 2 sites of care and 2 medical groups
Mengying Guo's primary practice is Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy) in Mission Viejo, California. Mengying Guo is also affiliated with Harbor-UCLA Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Mengying Guo to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Mengying Guo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mengying Guo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy) | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mengying Guo is one of 16,751 internists in California
Internal medicine is Mengying Guo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Mengying Guo is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Mengying Guo
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mengying Guo billed Medicare for 71 services in 2023
CMS data shows 71 Medicare services from Mengying Guo across 3 procedure codes in 2023, all of them office visits. Medicare paid $7,257 for them. Every service was in an office.
Mengying Guo's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3662023: 7181%
- Lab and pathology
- 2022: 1512023: 0100%
- Other services
- 2022: 142023: 0100%
- Surgery
- 2022: 712023: 0100%
Mengying Guo compared with the California median for internists, 2023
- Mengying Guo
- California median
- Medicare services
- 71vs 36180% below
- Part D claims
- 292vs 42131% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Mengying Guo's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Mengying Guo?
Medicare shows one payer. Book a meeting to get commercial claims data for Mengying Guo and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mengying Guo's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Mengying Guo's median patient age at 71, with 66% women.
Mengying Guo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women66%
- Men34%
Source: Dmand AI Patient Panel Data
Mengying Guo wrote 56 Medicare Part D claims in 2024
In 2024, Mengying Guo wrote 56 Medicare Part D claims for 20 patients. 89% of them were for generic drugs. They cover 10 drugs, with $4,641 in total drug cost. In 2022, CMS named 713 claims across 26 drugs.
Mengying Guo's Part D claims by kind of drug, 2024
- Generic50 claims89%
- Brand-name and other6 claims11%
Mengying Guo's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 7132023: 29259%
Drugs named by CMS: 10 in 2023, 26 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Mengying Guo received $133 in industry payments from 2021 to 2025
CMS Open Payments shows 7 general payments to Mengying Guo from 6 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $32.
General payments to Mengying Guo by program year, 2021 to 2025
Companies that paid Mengying Guo the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mengying Guo graduated from Medical College of Wisconsin
Mengying Guo graduated from Medical College of Wisconsin in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mengying Guo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mengying Guo
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What is Mengying Guo's NPI number?
Mengying Guo's NPI number is 1235664301. It was assigned on April 26, 2017, and it is active in the NPI Registry.
What does Mengying Guo specialize in?
Mengying Guo is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Mengying Guo practice?
Mengying Guo practices at 26800 Crown Valley Pkwy Suite 205 Suite 205, Mission Viejo, CA 92691-6384. Mengying Guo also practices at 1500 N San Pablo St, Los Angeles, CA 90033. Mengying Guo's primary practice is Providence Medical Foundation - Mission Viejo (Crown Valley Pkwy) in Mission Viejo, California. Dmand AI also links Mengying Guo to 1 medical group.
What is Mengying Guo's office phone number?
The practice phone on file for Mengying Guo is (949) 364-3330.
What is Mengying Guo's medical license number?
Mengying Guo holds California license A158952.
Which hospitals is Mengying Guo affiliated with?
Mengying Guo is affiliated with Harbor-UCLA Medical Center.
What medical group is Mengying Guo part of?
Mengying Guo is linked to St. Jude Heritage Medical Group. Dmand AI links Mengying Guo to 1 more medical group.
Does Mengying Guo accept Medicare?
Yes. CMS data shows Mengying Guo billed Medicare for 71 services in 2023.
What services does Mengying Guo bill to Medicare?
In 2023, Mengying Guo's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Mengying Guo go to medical school?
Mengying Guo graduated from Medical College of Wisconsin in 2017.
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What drugs does Mengying Guo prescribe most?
In 2023 Medicare Part D data, Mengying Guo's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Mengying Guo received payments from drug or device companies?
CMS Open Payments shows $133 in general payments to Mengying Guo from 6 companies from 2021 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Mengying Guo been practicing?
Mengying Guo graduated from medical school in 2017, 9 years ago.
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