Christine O. Diffenderffer, CRNP

  • Baltimore, MD
  • Family nurse practitioner
NPI1831754563PAC ID4981019676
Part D claims, 2024
151
Hospital affiliations
1
Medical groups
2
State license
1
Year NPI issued
2019
Practice address
600 N Wolfe St, Baltimore, MD 21287
Practice phone
Call (855) 662-3017
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Johns Hopkins Hospital Nelson/Harvey Building

Baltimore, Maryland

See all 6 affiliations

Find Christine Diffenderffer'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.

View contacts for free

Christine O. Diffenderffer is a family nurse practitioner in Baltimore, Maryland

Christine Diffenderffer practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland.

Christine Diffenderffer's NPI, 1831754563, was assigned on May 8, 2019. Christine Diffenderffer holds Maryland license R210124.

NPI and contact details
Medicare PAC ID
4981019676
NPI enumeration date
May 8, 2019
NPI status
Active
Practice phone
(855) 662-3017
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

Christine O. Diffenderffer practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland

Christine Diffenderffer's primary practice is Johns Hopkins Hospital Nelson/Harvey Building, at 600 N Wolfe St, Baltimore, MD 21287 in Baltimore City. The practice phone is (855) 662-3017.

  • Johns Hopkins Hospital Nelson/Harvey Building
    600 N Wolfe St, Baltimore, MD 21287 · Baltimore CityPhone(855) 662-3017

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Christine O. Diffenderffer is affiliated with 4 sites of care and 2 medical groups

Christine Diffenderffer's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Christine Diffenderffer is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Christine Diffenderffer to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Christine Diffenderffer

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Christine O. Diffenderffer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Christine Diffenderffer practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Johns Hopkins Hospital Nelson/Harvey BuildingAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Christine Diffenderffer practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Christine O. Diffenderffer is one of 3,917 family nurse practitioners in Maryland

Family is Christine Diffenderffer's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Christine Diffenderffer is licensed in Maryland.

Specialties and state licenses

  • Family nurse practitioner, MarylandPrimaryLicense R210124 · taxonomy 363LF0000X

Family nurse practitioners near Christine Diffenderffer

Counts of family 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

Christine O. Diffenderffer's patients have a median age of 65

Across all payers, Dmand AI patient panel data puts Christine Diffenderffer's median patient age at 65, with 47% women.

Christine Diffenderffer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women47%
  • Men53%

Source: Dmand AI Patient Panel Data

Christine O. Diffenderffer wrote 151 Medicare Part D claims in 2024

In 2024, Christine Diffenderffer wrote 151 Medicare Part D claims for 47 patients. 82% of them were for generic drugs.

Part D claims, 2024151
Part D patients47

Christine Diffenderffer's Part D claims by kind of drug, 2024

  • Generic124 claims82%
  • Brand-name and other27 claims18%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

For MedTech and pharma teams

Find family nurse practitioners like Christine Diffenderffer by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Sources for Christine O. Diffenderffer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Christine O. Diffenderffer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Christine O. Diffenderffer's NPI number?

Christine O. Diffenderffer's NPI number is 1831754563. It was assigned on May 8, 2019, and it is active in the NPI Registry.

What does Christine O. Diffenderffer specialize in?

Christine O. Diffenderffer is a family nurse practitioner in Baltimore, Maryland. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).

Where does Christine O. Diffenderffer practice?

Christine Diffenderffer practices at 600 N Wolfe St, Baltimore, MD 21287. Christine Diffenderffer's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dmand AI also links Christine Diffenderffer to 2 group practices and clinics and 1 medical group.

What is Christine O. Diffenderffer's office phone number?

The practice phone on file for Christine Diffenderffer is (855) 662-3017.

What is Christine O. Diffenderffer's medical license number?

Christine Diffenderffer holds Maryland license R210124.

Which hospitals is Christine O. Diffenderffer affiliated with?

Christine Diffenderffer is affiliated with The Johns Hopkins Hospital.

What medical group is Christine O. Diffenderffer part of?

Christine Diffenderffer is linked to Johns Hopkins University. Dmand AI links Christine Diffenderffer to 1 more medical group.

How long has Christine O. Diffenderffer been practicing?

Christine Diffenderffer's NPI was assigned in 2019.

Selling to family practices?

See family nurse practitioners in Maryland 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

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)