Gretchen Landwehr, CNM
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Gretchen Landwehr'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.
Gretchen Landwehr is an advanced practice midwife in Boston, Massachusetts
Gretchen Landwehr practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Gretchen Landwehr's NPI, 1427114628, was assigned on December 29, 2006. Gretchen Landwehr holds Massachusetts license RN244637.
- NPI
- 1427114628NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335247758
- NPI enumeration date
- December 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gretchen Landwehr practices at Tufts Medical Center in Boston, Massachusetts
Gretchen Landwehr's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Gretchen Landwehr is affiliated with 2 sites of care and 1 medical group
Gretchen Landwehr's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. The medical group on file is Pratt Ob/Gyn Associates. Dmand AI also links Gretchen Landwehr to 1 more imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gretchen Landwehr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gretchen Landwehr practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Tufts Medicine and 6.2K+ hospitals, with verified contacts in the same login.
Gretchen Landwehr is one of 307 advanced practice midwifes in Massachusetts
Advanced practice midwife is Gretchen Landwehr's primary specialty in the NPI Registry, under taxonomy code 367A00000X. Dmand AI has Gretchen Landwehr's licenses on file in 2 states: Massachusetts and California.
Specialties and state licenses
- Advanced practice midwife, MassachusettsPrimary
- California license
Advanced practice midwifes near Gretchen Landwehr
Counts of advanced practice midwifes 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
Gretchen Landwehr's patients have a median age of 29
Across all payers, Dmand AI patient panel data puts Gretchen Landwehr's median patient age at 29, with 88% women.
Gretchen Landwehr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 29
Patient panel by sex, all payers
- Women88%
- Men11%
Source: Dmand AI Patient Panel Data
How Gretchen Landwehr takes part in Medicare
Gretchen Landwehr 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)
Sources for Gretchen Landwehr'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 Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Gretchen Landwehr
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gretchen Landwehr's NPI number?
Gretchen Landwehr's NPI number is 1427114628. It was assigned on December 29, 2006, and it is active in the NPI Registry.
What does Gretchen Landwehr specialize in?
Gretchen Landwehr is an advanced practice midwife in Boston, Massachusetts. The primary specialty in the NPI Registry is Advanced Practice Midwife (taxonomy code 367A00000X).
Where does Gretchen Landwehr practice?
Gretchen Landwehr practices at 800 Washington Street, Boston, MA 02111. Gretchen Landwehr's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Gretchen Landwehr to 1 imaging center.
What is Gretchen Landwehr's office phone number?
The practice phone on file for Gretchen Landwehr is (617) 636-5000.
What is Gretchen Landwehr's medical license number?
Gretchen Landwehr holds Massachusetts license RN244637, one of the licenses on file in 2 states.
Which states has Gretchen Landwehr been licensed in?
Dmand AI has state licenses on file for Gretchen Landwehr in Massachusetts and California.
Which hospitals is Gretchen Landwehr affiliated with?
Gretchen Landwehr practices at Tufts Medical Center in Boston, Massachusetts.
What medical group is Gretchen Landwehr part of?
Gretchen Landwehr is linked to Pratt Ob/Gyn Associates.
Does Gretchen Landwehr accept Medicare?
Yes. CMS lists Gretchen Landwehr as accepting Medicare assignment.
How long has Gretchen Landwehr been practicing?
Gretchen Landwehr's NPI was assigned in 2006.
Selling to advanced practice midwife practices?
See advanced practice midwifes in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card