Vivian Thigi Wanjohi, AGACNP-BC, MSN
- Medicare patients, 2024
- 110
- Part D claims, 2024
- 153
- Hospital affiliations
- 1
- Industry payments
- $638
- Medical groups
- 2
- Practice address
- 20 York Street, New Haven, CT 06510
- Practice phone
- Call (203) 688-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale New Haven Psychiatric Hospital (York St)
Psychiatric Inpatient Facility · New Haven, Connecticut
Find Vivian Wanjohi's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Vivian Thigi Wanjohi is a nurse practitioner in New Haven, Connecticut
Vivian Wanjohi practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.
Vivian Wanjohi's NPI, 1851039200, was assigned on May 25, 2022. Vivian Wanjohi holds Connecticut license 11900.
- NPI
- 1851039200NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375903362
- NPI enumeration date
- May 25, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 688-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Vivian Thigi Wanjohi practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut
Vivian Wanjohi's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.
- Yale New Haven Psychiatric Hospital (York St)20 York Street, New Haven, CT 06510Phone(203) 688-5900
Source: Dmand AI Affiliation Data
Vivian Thigi Wanjohi is affiliated with 4 sites of care and 2 medical groups
Vivian Wanjohi's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Vivian Wanjohi is also affiliated with Yale New Haven Hospital. The medical group on file is Oncology Hematology Care of Connecticut. Dmand AI also links Vivian Wanjohi to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Vivian Thigi Wanjohi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Vivian Wanjohi practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Psychiatric Hospital (York St) | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Vivian Thigi Wanjohi is one of 635 nurse practitioners in Connecticut
Nurse practitioner is Vivian Wanjohi's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Vivian Wanjohi is licensed in Connecticut.
Specialties and state licenses
- Nurse practitioner, ConnecticutPrimary
Nurse practitioners near Vivian Wanjohi
Counts of nurse practitioners 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
Vivian Thigi Wanjohi treated 110 Medicare patients in 2024, average age 78
CMS counts 110 Medicare patients who saw Vivian Wanjohi in 2024. The largest group is 75 to 84, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.71, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Vivian Wanjohi's median patient age at 60, with 72% women.
Vivian Wanjohi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Vivian Wanjohi's Medicare patients by sex, 2024
- Women7467%
- Men3633%
Chronic conditions among Vivian Wanjohi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Anxiety35%
- Chronic kidney disease35%
- Diabetes31%
- Osteoporosis31%
- COPD28%
Share of Medicare patients with each condition. A patient can have several.
Vivian Wanjohi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women72%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Vivian Thigi Wanjohi wrote 153 Medicare Part D claims in 2024
In 2024, Vivian Wanjohi wrote 153 Medicare Part D claims for 40 patients. 88% of them were for generic drugs.
Vivian Wanjohi's Part D claims by kind of drug, 2024
- Generic134 claims88%
- Brand-name19 claims12%
Drug classes CMS tracks in Vivian Wanjohi's Part D claims, 2024
- Opioids18%27 of 153 claims
- Antibiotics16%25 of 153 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Vivian Thigi Wanjohi takes part in Medicare
Vivian Wanjohi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Vivian Thigi Wanjohi received $638 in industry payments in 2025
CMS Open Payments shows 27 general payments to Vivian Wanjohi from 17 drug and device companies in 2025. Food and beverage make up the largest share, 78% of the total. Seagen Inc. paid the most, $88.
General payments to Vivian Wanjohi by kind, 2025 to 2025
- Food and beverage$50078%
- Education$13822%
Companies that paid Vivian Wanjohi the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Vivian Thigi Wanjohi'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Vivian Thigi Wanjohi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Vivian Thigi Wanjohi's NPI number?
Vivian Thigi Wanjohi's NPI number is 1851039200. It was assigned on May 25, 2022, and it is active in the NPI Registry.
What does Vivian Thigi Wanjohi specialize in?
Vivian Thigi Wanjohi is a nurse practitioner in New Haven, Connecticut. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Vivian Thigi Wanjohi practice?
Vivian Wanjohi practices at 20 York Street, New Haven, CT 06510. Vivian Wanjohi's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Vivian Wanjohi to 2 group practices and clinics and 1 medical group.
What is Vivian Thigi Wanjohi's office phone number?
The practice phone on file for Vivian Wanjohi is (203) 688-5900.
What is Vivian Thigi Wanjohi's medical license number?
Vivian Wanjohi holds Connecticut license 11900.
Which hospitals is Vivian Thigi Wanjohi affiliated with?
Vivian Wanjohi is affiliated with Yale New Haven Hospital.
What medical group is Vivian Thigi Wanjohi part of?
Vivian Wanjohi is linked to Oncology Hematology Care of Connecticut. Dmand AI links Vivian Wanjohi to 1 more medical group.
Does Vivian Thigi Wanjohi accept Medicare?
Yes. CMS lists Vivian Wanjohi as accepting Medicare assignment.
How many Medicare patients does Vivian Thigi Wanjohi see?
CMS counts 110 Medicare patients who saw Vivian Wanjohi in 2024, with an average age of 78.
Has Vivian Thigi Wanjohi received payments from drug or device companies?
CMS Open Payments shows $638 in general payments to Vivian Wanjohi from 17 companies from 2025 to 2025. The largest total came from Seagen Inc.
How long has Vivian Thigi Wanjohi been practicing?
Vivian Wanjohi graduated from medical school in 2022, 4 years ago.
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