Dr. Nancy L. Greer, MD
- Industry payments
- $1,049
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 20033 N 19th Ave, Phoenix, AZ 85027
- Practice phone
- Call (623) 869-8948
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Twin Pediatrics
Phoenix, Arizona
Find Dr. Greer'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.
Dr. Nancy L. Greer is a pediatrician in Phoenix, Arizona
Dr. Greer practices at Twin Pediatrics in Phoenix, Arizona.
Dr. Greer's NPI, 1639158363, was assigned on January 11, 2006. Dr. Greer holds Colorado license 35049.
- NPI
- 1639158363NPI Registry (opens in a new tab)
- NPI enumeration date
- January 11, 2006
- NPI status
- Active
- Practice phone
- (623) 869-8948
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Nancy L. Greer practices at Twin Pediatrics in Phoenix, Arizona
Dr. Greer's primary practice is Twin Pediatrics, at 20033 N 19th Ave, Phoenix, AZ 85027 in Maricopa County. The practice phone is (623) 869-8948.
- Twin Pediatrics20033 N 19th Ave, Phoenix, AZ 85027 · Maricopa CountyPhone(623) 869-8948
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nancy L. Greer is affiliated with 2 sites of care and 1 medical group
Dr. Greer's primary practice is Twin Pediatrics in Phoenix, Arizona. Dmand AI also links Dr. Greer to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nancy L. Greer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Twin Pediatrics | 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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Dr. Nancy L. Greer is one of 1,000 pediatricians in Arizona
Pediatrics is Dr. Greer's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Greer is licensed in Colorado.
Specialties and state licenses
- Pediatrics, ColoradoPrimary
Pediatricians near Dr. Greer
Counts of pediatricians 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
Dr. Nancy L. Greer's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Greer's median patient age at 12, with 57% women.
Dr. Greer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Nancy L. Greer received $1,049 in industry payments from 2016 to 2024
CMS Open Payments shows 17 general payments to Dr. Greer from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. Alcon Laboratories Inc paid the most, $337.
General payments to Dr. Greer by program year, 2016 to 2024
General payments to Dr. Greer by kind, 2016 to 2024
- Food and beverage$1,04099%
- Education$91%
Companies that paid Dr. Greer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nancy L. Greer'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Dr. Nancy L. Greer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nancy L. Greer's NPI number?
Dr. Nancy L. Greer's NPI number is 1639158363. It was assigned on January 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nancy L. Greer?
Dr. Nancy L. Greer is a pediatrician in Phoenix, Arizona. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Nancy L. Greer practice?
Dr. Greer practices at 20033 N 19th Ave, Phoenix, AZ 85027. Dr. Greer's primary practice is Twin Pediatrics in Phoenix, Arizona. Dmand AI also links Dr. Greer to 1 group practice or clinic and 1 medical group.
What is Dr. Nancy L. Greer's office phone number?
The practice phone on file for Dr. Greer is (623) 869-8948.
What is Dr. Nancy L. Greer's medical license number?
Dr. Greer holds Colorado license 35049.
Has Dr. Nancy L. Greer received payments from drug or device companies?
CMS Open Payments shows $1,049 in general payments to Dr. Greer from 9 companies from 2016 to 2024. The largest total came from Alcon Laboratories Inc.
How long has Dr. Nancy L. Greer been practicing?
Dr. Greer's NPI was assigned in 2006.
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