Katherine M. Riddle

  • South Windsor, CT
  • OB-GYN
NPI1669866588PAC ID1355655812
Medicare services, 2024
20
Medicare patients, 2024
29
Part D claims, 2024
69
Hospital affiliations
2
Industry payments
$390
Practice address
2701 Tamarack Ave, South Windsor, CT 06074
Practice phone
Call (860) 646-1157
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

OBGYN Group of Eastern Connecticut

South Windsor, Connecticut

See all 5 affiliations

Find Katherine Riddle'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

Katherine M. Riddle is an OB-GYN in South Windsor, Connecticut

Katherine Riddle practices at OBGYN Group of Eastern Connecticut in South Windsor, Connecticut.

Katherine Riddle's NPI, 1669866588, was assigned on March 28, 2015. Katherine Riddle graduated from Creighton University School of Medicine in 2015. Katherine Riddle holds Connecticut license 63724.

NPI and contact details
Medicare PAC ID
1355655812
NPI enumeration date
March 28, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(860) 646-1157
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Katherine M. Riddle practices at OBGYN Group of Eastern Connecticut in South Windsor, Connecticut

Katherine Riddle's primary practice is OBGYN Group of Eastern Connecticut, at 2701 Tamarack Ave, South Windsor, CT 06074 in Capitol County. The practice phone is (860) 646-1157.

  • OBGYN Group of Eastern Connecticut
    2701 Tamarack Ave, South Windsor, CT 06074 · Capitol CountyPhone(860) 646-1157

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

Katherine M. Riddle is affiliated with 4 sites of care and 1 medical group

Katherine Riddle's primary practice is OBGYN Group of Eastern Connecticut in South Windsor, Connecticut. Katherine Riddle is also affiliated with Manchester Memorial Hospital. The medical group on file is OBGYN Group of Eastern Connecticut. Dmand AI also links Katherine Riddle to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Katherine Riddle

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

Dmand AI tracks the EHR system at Katherine M. Riddle's practice

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

EHR by site
SiteEHR vendor and product
OBGYN Group of Eastern ConnecticutAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Katherine Riddle 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.

Katherine M. Riddle is one of 591 OB-GYNs in Connecticut

Obstetrics and gynecology is Katherine Riddle's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Katherine Riddle is licensed in Connecticut.

Specialties and state licenses

  • Obstetrics and gynecology, ConnecticutPrimaryLicense 63724 · taxonomy 207V00000X

OB-GYNs near Katherine Riddle

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

591OB-GYNs in Connecticut
5OB-GYNs in South Windsor

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Katherine M. Riddle billed Medicare for 20 services in 2024

CMS data shows 20 Medicare services from Katherine Riddle across 1 procedure code in 2024, all of them office visits, for 29 Medicare patients. Medicare paid $1,048 for them. Every service was in an office.

Medicare services, 202420
Medicare patients29
Paid by Medicare$1,048
Procedure codes1

Katherine Riddle's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 02024: 20
Other services
2023: 142024: 0100%

Katherine Riddle compared with the Connecticut median for OB-GYNs, 2024

  • Katherine Riddle
  • Connecticut median
Medicare services
20vs 7071% below
Medicare patients
29vs 4941% below
Part D claims
14vs 5474% below

Medians across 541 OB-GYNs in Connecticut with Dmand AI profiles that report each measure.

Katherine Riddle's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Katherine Riddle

Need commercial claims for Katherine Riddle?

Medicare shows one payer. Book a meeting to get commercial claims data for Katherine Riddle and other OB-GYNs in Connecticut.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Katherine M. Riddle treated 29 Medicare patients in 2024, average age 69

CMS counts 29 Medicare patients who saw Katherine Riddle in 2024. The largest group is 65 to 74, with 15 patients. 66% of them have high blood pressure, and 62% have high cholesterol. Their average risk score is 0.78, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Katherine Riddle's median patient age at 37, with 98% women.

Medicare patients, 202429
Average age69
Average risk score0.78

Katherine Riddle's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Katherine Riddle's Medicare patients, 2024

  1. High blood pressure66%
  2. High cholesterol62%

Share of Medicare patients with each condition. A patient can have several.

Katherine Riddle's patients across all payers

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

Patient panel by age, all payers

Median age 37

Patient panel by sex, all payers

  • Women98%
  • Men0%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Katherine M. Riddle wrote 69 Medicare Part D claims in 2024

In 2024, Katherine Riddle wrote 69 Medicare Part D claims for 36 patients. 88% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $629 in total drug cost. In 2023, CMS named 17 claims across 1 drug.

Part D claims, 202469
Drugs named by CMS1
Total drug cost$629
Part D patients36

Katherine Riddle's Part D claims by kind of drug, 2024

  • Generic61 claims88%
  • Brand-name and other8 claims12%

Katherine Riddle's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 172024: 1418%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Katherine Riddle

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

How Katherine M. Riddle takes part in Medicare

Katherine Riddle 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)

For MedTech and pharma teams

Find OB-GYNs like Katherine Riddle 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.

Katherine M. Riddle received $390 in industry payments from 2020 to 2025

CMS Open Payments shows 19 general payments to Katherine Riddle from 10 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 94% of the total. CooperSurgical, Inc. paid the most, $100.

General payments to Katherine Riddle by program year, 2020 to 2025

General payments to Katherine Riddle by kind, 2020 to 2025

$390in total
  • Food and beverage$36594%
  • Consulting fees$256%

Companies that paid Katherine Riddle the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Katherine Riddle

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Katherine M. Riddle graduated from Creighton University School of Medicine

Katherine Riddle graduated from Creighton University School of Medicine in 2015.

  1. Medical schoolCreighton University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Katherine M. Riddle'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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 Katherine M. Riddle

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

What is Katherine M. Riddle's NPI number?

Katherine M. Riddle's NPI number is 1669866588. It was assigned on March 28, 2015, and it is active in the NPI Registry.

What does Katherine M. Riddle specialize in?

Katherine M. Riddle is an OB-GYN in South Windsor, Connecticut. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Katherine M. Riddle practice?

Katherine Riddle practices at 2701 Tamarack Ave, South Windsor, CT 06074. Katherine Riddle's primary practice is OBGYN Group of Eastern Connecticut in South Windsor, Connecticut. Dmand AI also links Katherine Riddle to 1 hospital and 1 group practice or clinic.

What is Katherine M. Riddle's office phone number?

The practice phone on file for Katherine Riddle is (860) 646-1157.

What is Katherine M. Riddle's medical license number?

Katherine Riddle holds Connecticut license 63724.

Which hospitals is Katherine M. Riddle affiliated with?

Katherine Riddle is affiliated with Manchester Memorial Hospital. Dmand AI links Katherine Riddle to 1 more hospital.

What medical group is Katherine M. Riddle part of?

Katherine Riddle is linked to OBGYN Group of Eastern Connecticut.

Does Katherine M. Riddle accept Medicare?

Yes. CMS data shows Katherine Riddle billed Medicare for 20 services in 2024, and Katherine Riddle accepts Medicare assignment.

How many Medicare patients does Katherine M. Riddle see?

CMS counts 29 Medicare patients who saw Katherine Riddle in 2024, with an average age of 69.

What services does Katherine M. Riddle bill to Medicare?

In 2024, Katherine Riddle's most billed Medicare services were office visit, established patient (99213).

Show 4 more questionsShow fewer questions

Where did Katherine M. Riddle go to medical school?

Katherine Riddle graduated from Creighton University School of Medicine in 2015.

What drugs does Katherine M. Riddle prescribe most?

In 2024 Medicare Part D data, Katherine Riddle's most prescribed drugs by claims were Estradiol.

Has Katherine M. Riddle received payments from drug or device companies?

CMS Open Payments shows $390 in general payments to Katherine Riddle from 10 companies from 2020 to 2025. The largest total came from CooperSurgical, Inc.

How long has Katherine M. Riddle been practicing?

Katherine Riddle graduated from medical school in 2015, 11 years ago.

Selling to obstetrics and gynecology practices?

See OB-GYNs in Connecticut 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)