Dr. Monica P. Leff, MD
- Medicare services, 2023
- 646
- Part D claims, 2024
- 251
- Hospital affiliations
- 1
- Industry payments
- $865
- Medical group
- 1
- Practice address
- 4800 E Los Coyotes Diagonal, Long Beach, CA 90815
- Practice phone
- Call (562) 506-1313
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ROADS Community Clinic - East Long Beach
FQHC - Main Site · Long Beach, California
Find Dr. Leff'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. Monica P. Leff is an OB-GYN in Long Beach, California
Dr. Leff practices at ROADS Community Clinic - East Long Beach in Long Beach, California.
Dr. Leff's NPI, 1962476028, was assigned on February 15, 2006. Dr. Leff graduated from David Geffen School of Medicine at UCLA in 1978. Dr. Leff's California license number on file is G41128.
- NPI
- 1962476028NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779688783
- NPI enumeration date
- February 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 506-1313
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Monica P. Leff practices at ROADS Community Clinic - East Long Beach in Long Beach, California
Dr. Leff's primary practice is ROADS Community Clinic - East Long Beach, at 4800 E Los Coyotes Diagonal, Long Beach, CA 90815 in Los Angeles County. The practice phone is (562) 506-1313.
- ROADS Community Clinic - East Long Beach4800 E Los Coyotes Diagonal, Long Beach, CA 90815 · Los Angeles CountyPhone(562) 506-1313
Source: Dmand AI Affiliation Data
Dr. Monica P. Leff is affiliated with 3 sites of care and 1 medical group
Dr. Leff's primary practice is ROADS Community Clinic - East Long Beach in Long Beach, California. Dr. Leff is also affiliated with Long Beach Medical Center. The medical group on file is ROADS Community Clinic - Compton. Dmand AI also links Dr. Leff to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Monica P. Leff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leff practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ROADS Community Clinic - East Long Beach | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Monica P. Leff is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Leff's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Leff is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Leff has a license on file in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
Clinical focus
Dmand AI lists bladder disease, menopause, pelvic prolapse, UTI and vaginal infection among the conditions Dr. Leff treats.
OB-GYNs near Dr. Leff
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. Monica P. Leff billed Medicare for 646 services in 2023
CMS data shows 646 Medicare services from Dr. Leff across 5 procedure codes in 2023. Medicare paid $48,223 for them. Every service was in an office.
Dr. Leff's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 4212023: 4161%
- Other services
- 2022: 1992023: 23016%
Dr. Leff compared with the California median for OB-GYNs, 2023
- Dr. Leff
- California median
- Medicare services
- 646vs 5811.1 times
- Part D claims
- 153vs 354.4 times
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Leff's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Leff?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leff and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Monica P. Leff's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Leff's median patient age at 47, with 99% women.
Dr. Leff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women99%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Monica P. Leff wrote 251 Medicare Part D claims in 2024
In 2024, Dr. Leff wrote 251 Medicare Part D claims for 84 patients. 79% of them were for generic drugs. CMS names the drug for 153 of them, across 6 drugs with 11 or more claims each, at $11,386 in total drug cost. In 2023, CMS named 772 claims across 24 drugs.
Dr. Leff's Part D claims by kind of drug, 2024
- Generic198 claims79%
- Brand-name53 claims21%
Dr. Leff'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: 7722024: 15380%
Drugs named by CMS: 6 in 2024, 24 in 2023.
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 Dr. Monica P. Leff takes part in Medicare
Dr. Leff 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)
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Dr. Monica P. Leff received $865 in industry payments from 2016 to 2025
CMS Open Payments shows 21 general payments to Dr. Leff from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Abbvie Inc. paid the most, $451.
General payments to Dr. Leff by program year, 2016 to 2025
General payments to Dr. Leff by kind, 2016 to 2025
- Food and beverage$83096%
- Education$354%
Companies that paid Dr. Leff the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Monica P. Leff has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Leff, most recently BEST Doctors in 2020.
Awards and honors for Dr. Leff
- 2020
- BEST Doctors
- Undated
- Chief of Staff
- Super Doc
- Top Doctors:LA Area
Dr. Leff's committees and leadership roles
- BioethicsCommittee member
- 2003 to 2023
Source: Dmand AI Professional Profile Data
Dr. Monica P. Leff graduated from David Geffen School of Medicine at UCLA
Dr. Leff graduated from David Geffen School of Medicine at UCLA in 1978.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Monica P. Leff accepts plans from 4 insurance carriers
Dr. Leff is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Leff accepts, by number of carriers
- Medicare4
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Monica P. Leff'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Monica P. Leff
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. Monica P. Leff's NPI number?
Dr. Monica P. Leff's NPI number is 1962476028. It was assigned on February 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Monica P. Leff?
Dr. Monica P. Leff is an OB-GYN in Long Beach, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Monica P. Leff practice?
Dr. Leff practices at 4800 E Los Coyotes Diagonal, Long Beach, CA 90815. Dr. Leff's primary practice is ROADS Community Clinic - East Long Beach in Long Beach, California. Dmand AI also links Dr. Leff to 1 group practice or clinic.
What is Dr. Monica P. Leff's office phone number?
The practice phone on file for Dr. Leff is (562) 506-1313.
What is Dr. Monica P. Leff's medical license number?
Dr. Leff's California license number on file is G41128.
Which hospitals is Dr. Monica P. Leff affiliated with?
Dr. Leff is affiliated with Long Beach Medical Center.
What medical group is Dr. Monica P. Leff part of?
Dr. Leff is linked to ROADS Community Clinic - Compton.
Does Dr. Monica P. Leff accept Medicare?
Yes. CMS data shows Dr. Leff billed Medicare for 646 services in 2023, and Dr. Leff accepts Medicare assignment.
Is Dr. Monica P. Leff board certified?
Yes. Dr. Leff is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
What services does Dr. Monica P. Leff bill to Medicare?
In 2023, Dr. Leff's most billed Medicare services were office visit, established patient (99214), medicare service (G0101) and medicare temporary code (Q0091).
Show 5 more questionsShow fewer questions
Where did Dr. Monica P. Leff go to medical school?
Dr. Leff graduated from David Geffen School of Medicine at UCLA in 1978.
What drugs does Dr. Monica P. Leff prescribe most?
In 2024 Medicare Part D data, Dr. Leff's most prescribed drugs by claims were Progesterone, Estradiol (Twice Weekly) and Estradiol.
Has Dr. Monica P. Leff received payments from drug or device companies?
CMS Open Payments shows $865 in general payments to Dr. Leff from 11 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Monica P. Leff been practicing?
Dr. Leff graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Monica P. Leff accept?
Dr. Leff is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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