Dr. Nilima H. Mamtora, MD

  • Anaheim, CA
  • OB-GYN
NPI1629019286PAC ID3971761313
Medicare services, 2024
157
Medicare patients, 2024
81
Part D claims, 2024
461
Hospital affiliations
1
Industry payments
$1,797
Practice address
531 S Harbor Blvd, Anaheim, CA 92805-4525
Practice phone
Call (714) 956-3535
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Woman to Woman Ob/Gyn Medical Group

Physician office · Anaheim, California

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Dr. Nilima H. Mamtora is an OB-GYN in Anaheim, California

Dr. Mamtora practices at Woman to Woman Ob/Gyn Medical Group in Anaheim, California.

Dr. Mamtora's NPI, 1629019286, was assigned on June 8, 2006. Dr. Mamtora graduated from N.H.L Municipal Medical College in 1984. Dr. Mamtora holds California license 00A505820.

NPI and contact details
Medicare PAC ID
3971761313
NPI enumeration date
June 8, 2006
NPI status
Active
Offers telehealth
Yes
Practice phone
(714) 956-3535
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
70
Medical school graduation
1984

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

Dr. Nilima H. Mamtora practices at Woman to Woman Ob/Gyn Medical Group in Anaheim, California

Dr. Mamtora's primary practice is Woman to Woman Ob/Gyn Medical Group, at 531 S Harbor Blvd, Anaheim, CA 92805-4525. The practice phone is (714) 956-3535.

  • Woman to Woman Ob/Gyn Medical Group
    531 S Harbor Blvd, Anaheim, CA 92805-4525Phone(714) 956-3535

Source: Dmand AI Affiliation Data

Dr. Nilima H. Mamtora is affiliated with 2 sites of care and 1 medical group

Dr. Mamtora's primary practice is Woman to Woman Ob/Gyn Medical Group in Anaheim, California. Dr. Mamtora is also affiliated with Riverside Community Hospital. The medical group on file is Ob Hospitalist Group.

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Nilima H. Mamtora's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mamtora practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Woman to Woman Ob/Gyn Medical GroupAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nilima H. Mamtora is one of 4,642 OB-GYNs in California

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

Specialties and state licenses

  • Obstetrics and gynecology, CaliforniaPrimaryLicense 00A505820 · 1992 to 2027 · taxonomy 207V00000X
  • New Jersey license1991 to 2005

Clinical focus

Dmand AI lists menopause, ovarian cyst and UTI among the conditions Dr. Mamtora treats.

OB-GYNs near Dr. Mamtora

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. Nilima H. Mamtora billed Medicare for 157 services in 2024

CMS data shows 157 Medicare services from Dr. Mamtora across 5 procedure codes in 2024, for 81 Medicare patients. Medicare paid $9,166 for them. Every service was in an office.

Medicare services, 2024157
Medicare patients81
Paid by Medicare$9,166
Procedure codes5

Dr. Mamtora's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1242024: 1283%
Other services
2023: 532024: 2945%

Dr. Mamtora compared with the California median for OB-GYNs, 2024

  • Dr. Mamtora
  • California median
Medicare services
157vs 582.7 times
Medicare patients
81vs 5256% above
Part D claims
342vs 359.8 times

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

Dr. Mamtora'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 Dr. Mamtora

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

Dr. Nilima H. Mamtora treated 81 Medicare patients in 2024, average age 65

CMS counts 81 Medicare patients who saw Dr. Mamtora in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 80% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Mamtora's median patient age at 42, with 99% women.

Medicare patients, 202481
Average age65
Average risk score1.21
Also on Medicaid80%

Dr. Mamtora's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Mamtora's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure72%
  3. Diabetes56%
  4. Arthritis44%
  5. Mood disorders28%
  6. Depression22%
  7. Anxiety21%
  8. Chronic kidney disease21%

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

Dr. Mamtora's patients across all payers

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

Patient panel by age, all payers

Median age 42

Patient panel by sex, all payers

  • Women99%
  • Men0%

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

Dr. Nilima H. Mamtora wrote 461 Medicare Part D claims in 2024

In 2024, Dr. Mamtora wrote 461 Medicare Part D claims for 95 patients. 77% of them were for generic drugs. CMS names the drug for 342 of them, across 15 drugs with 11 or more claims each, at $34,014 in total drug cost. In 2023, CMS named 286 claims across 15 drugs.

Part D claims, 2024461
Drugs named by CMS15
Total drug cost$34,014
Part D patients95

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

  • Generic356 claims77%
  • Brand-name105 claims23%

Dr. Mamtora'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. Mamtora's Part D claims, 2024

  • Antibiotics9%43 of 461 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: 2862024: 34220%

Drugs named by CMS: 15 in 2024, 15 in 2023.

See all prescribing by Dr. Mamtora

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

Dr. Nilima H. Mamtora offers telehealth to Medicare patients

CMS lists Dr. Mamtora as offering telehealth.

Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Nilima H. Mamtora received $1,797 in industry payments from 2016 to 2025

CMS Open Payments shows 116 general payments to Dr. Mamtora from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 82% of the total. Pfizer Inc. paid the most, $352.

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

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

$1.8Kin total
  • Food and beverage$1,47982%
  • Education$31718%

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

Share is of all general payments to this clinician.

See all payments to Dr. Mamtora

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

Dr. Nilima H. Mamtora graduated from N.H.L Municipal Medical College

Dr. Mamtora graduated from N.H.L Municipal Medical College in 1984.

  1. Medical schoolN.H.L Municipal Medical College
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Dr. Nilima H. Mamtora accepts plans from 7 insurance carriers

Dr. Mamtora is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Humana
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Mamtora accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Nilima H. Mamtora'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 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
Insurance carriers and plan typesDmand AI Insurance Network 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. Nilima H. Mamtora

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. Nilima H. Mamtora's NPI number?

Dr. Nilima H. Mamtora's NPI number is 1629019286. It was assigned on June 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nilima H. Mamtora?

Dr. Nilima H. Mamtora is an OB-GYN in Anaheim, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Nilima H. Mamtora practice?

Dr. Mamtora practices at 531 S Harbor Blvd, Anaheim, CA 92805-4525. Dr. Mamtora's primary practice is Woman to Woman Ob/Gyn Medical Group in Anaheim, California.

What is Dr. Nilima H. Mamtora's office phone number?

The practice phone on file for Dr. Mamtora is (714) 956-3535.

What is Dr. Nilima H. Mamtora's medical license number?

Dr. Mamtora holds California license 00A505820, one of the licenses on file in 2 states.

Which states has Dr. Nilima H. Mamtora been licensed in?

Dmand AI has state licenses on file for Dr. Mamtora in California (1992 to 2027) and New Jersey (1991 to 2005).

Which hospitals is Dr. Nilima H. Mamtora affiliated with?

Dr. Mamtora is affiliated with Riverside Community Hospital.

What medical group is Dr. Nilima H. Mamtora part of?

Dr. Mamtora is linked to Ob Hospitalist Group.

Does Dr. Nilima H. Mamtora accept Medicare?

Yes. CMS data shows Dr. Mamtora billed Medicare for 157 services in 2024.

Does Dr. Nilima H. Mamtora offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Mamtora as offering telehealth services.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Nilima H. Mamtora see?

CMS counts 81 Medicare patients who saw Dr. Mamtora in 2024, with an average age of 65.

Is Dr. Nilima H. Mamtora board certified?

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

What services does Dr. Nilima H. Mamtora bill to Medicare?

In 2024, Dr. Mamtora's most billed Medicare services were office visit, established patient (99213), medicare service (G0101) and medicare temporary code (Q0091).

Where did Dr. Nilima H. Mamtora go to medical school?

Dr. Mamtora graduated from N.H.L Municipal Medical College in 1984.

What drugs does Dr. Nilima H. Mamtora prescribe most?

In 2024 Medicare Part D data, Dr. Mamtora's most prescribed drugs by claims were Estradiol, Premarin and Medroxyprogesterone Acetate.

Has Dr. Nilima H. Mamtora received payments from drug or device companies?

CMS Open Payments shows $1,797 in general payments to Dr. Mamtora from 22 companies from 2016 to 2025. The largest total came from Pfizer Inc.

How long has Dr. Nilima H. Mamtora been practicing?

Dr. Mamtora graduated from medical school in 1984, 42 years ago.

What insurance does Dr. Nilima H. Mamtora accept?

Dr. Mamtora is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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