Dr. Connie Chein, MD

  • Whittier, CA
  • OB-GYN
NPI1851327431
Medicare services, 2016
534
Part D claims, 2024
775
Hospital affiliations
2
Industry payments
$3,750
Medical group
1
Practice address
12401 Washington Blvd, Whittier, CA 90602
Practice phone
Call (562) 698-0811
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

PIH Health Whittier Hospital

Hospital · Whittier, California

See all 4 affiliations

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Dr. Connie Chein is an OB-GYN in Whittier, California

Dr. Chein practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.

Dr. Chein's NPI, 1851327431, was assigned on June 24, 2006. Dr. Chein graduated from David Geffen School of Medicine at UCLA in 1975. Dr. Chein holds California license 631986.

NPI and contact details
NPI enumeration date
June 24, 2006
NPI status
Active
Practice phone
(562) 698-0811
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Medical school graduation
1975

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

Dr. Connie Chein practices at PIH Health Whittier Hospital in Whittier, California

Dr. Chein's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.

Source: Dmand AI Affiliation Data

Dr. Connie Chein is affiliated with 3 sites of care and 1 medical group

Dr. Chein's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Dr. Chein to 1 hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Chein

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Connie Chein's practice

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

EHR by site
SiteEHR vendor and product
PIH Health Whittier HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Connie Chein is one of 4,642 OB-GYNs in California

Obstetrics and gynecology is Dr. Chein's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Chein is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Chein's licenses on file in 2 states: California and Nevada.

Specialties and state licenses

  • Obstetrics and gynecology, CaliforniaPrimaryLicense 631986 · 1976 to 2026 · taxonomy 207V00000X
  • Nevada license1977 to 2027

OB-GYNs near Dr. Chein

Counts of OB-GYNs 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. Connie Chein billed Medicare for 534 services in 2016

CMS data shows 534 Medicare services from Dr. Chein across 1 procedure code in 2016, all of them office visits. Medicare paid $36,948 for them. Every service was in an office.

Medicare services, 2016534
Paid by Medicare$36,948
Procedure codes1

Dr. Chein compared with the California median for OB-GYNs, 2016

  • Dr. Chein
  • California median
Medicare services
534vs 589.2 times
Part D claims
654vs 3518.7 times

Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.

Dr. Chein's most billed Medicare procedure codes, 2016

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 Dr. Chein

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

Dr. Connie Chein's patients have a median age of 66

Across all payers, Dmand AI patient panel data puts Dr. Chein's median patient age at 66, with 99% women.

Dr. Chein's patients across all payers

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

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women99%
  • Men1%

Source: Dmand AI Patient Panel Data

Dr. Connie Chein wrote 775 Medicare Part D claims in 2024

In 2024, Dr. Chein wrote 775 Medicare Part D claims for 214 patients. 76% of them were for generic drugs. CMS names the drug for 654 of them, across 17 drugs with 11 or more claims each, at $52,738 in total drug cost. In 2023, CMS named 656 claims across 17 drugs.

Part D claims, 2024775
Drugs named by CMS17
Total drug cost$52,738
Part D patients214

Dr. Chein's Part D claims by kind of drug, 2024

  • Generic587 claims76%
  • Brand-name188 claims24%

Dr. Chein'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.

Drug classes CMS tracks in Dr. Chein's Part D claims, 2024

  • Antibiotics17%132 of 775 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6562024: 654No change

Drugs named by CMS: 17 in 2024, 17 in 2023.

See all prescribing by Dr. Chein

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

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Dr. Connie Chein received $3,750 in industry payments from 2016 to 2025

CMS Open Payments shows 225 general payments to Dr. Chein from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Vertical Pharmaceuticals, LLC paid the most, $502.

General payments to Dr. Chein by program year, 2016 to 2025

General payments to Dr. Chein by kind, 2016 to 2025

$3.8Kin total
  • Food and beverage$3,56895%
  • Education$1825%

Companies that paid Dr. Chein the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Chein

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

Dr. Connie Chein has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Chein, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Chein

  1. 2014
    • Regional Top Doctor
  2. 2013
    • CMS Stage 1 EHR
  3. Undated
    • ACOG Fellow
    • lifetime member

Source: Dmand AI Professional Profile Data

Dr. Connie Chein graduated from David Geffen School of Medicine at UCLA

Dr. Chein graduated from David Geffen School of Medicine at UCLA in 1975. Dr. Chein is a member of American College of Obstetricians and Gynecologists.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Sources for Dr. Connie Chein'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 Data
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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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 Dr. Connie Chein

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. Connie Chein's NPI number?

Dr. Connie Chein's NPI number is 1851327431. It was assigned on June 24, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Connie Chein?

Dr. Connie Chein is an OB-GYN in Whittier, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Connie Chein practice?

Dr. Chein practices at 12401 Washington Blvd, Whittier, CA 90602. Dr. Chein's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Dr. Chein to 1 hospital, 1 group practice or clinic and 1 medical group.

What is Dr. Connie Chein's office phone number?

The practice phone on file for Dr. Chein is (562) 698-0811.

What is Dr. Connie Chein's medical license number?

Dr. Chein holds California license 631986, one of the licenses on file in 2 states.

Which states has Dr. Connie Chein been licensed in?

Dmand AI has state licenses on file for Dr. Chein in California (1976 to 2026) and Nevada (1977 to 2027).

Which hospitals is Dr. Connie Chein affiliated with?

Dr. Chein practices at PIH Health Whittier Hospital in Whittier, California. Dmand AI links Dr. Chein to 1 more hospital.

Does Dr. Connie Chein accept Medicare?

Yes. CMS data shows Dr. Chein billed Medicare for 534 services in 2016.

Is Dr. Connie Chein board certified?

Yes. Dr. Chein is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.

What services does Dr. Connie Chein bill to Medicare?

In 2016, Dr. Chein's most billed Medicare services were office visit, established patient (99214).

Show 4 more questionsShow fewer questions

Where did Dr. Connie Chein go to medical school?

Dr. Chein graduated from David Geffen School of Medicine at UCLA in 1975.

What drugs does Dr. Connie Chein prescribe most?

In 2024 Medicare Part D data, Dr. Chein's most prescribed drugs by claims were Nitrofurantoin Mono-Macro, Estradiol and Imvexxy.

Has Dr. Connie Chein received payments from drug or device companies?

CMS Open Payments shows $3,750 in general payments to Dr. Chein from 27 companies from 2016 to 2025. The largest total came from Vertical Pharmaceuticals, LLC.

How long has Dr. Connie Chein been practicing?

Dr. Chein graduated from medical school in 1975, 51 years ago.

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