Dr. Nalini Devi Mattai , MD
General Practice • Pasadena, CA
301 S Fair Oaks Ave Ste 405
Pasadena, CA 911052562
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Nalini Mattai is listed in NPPES under General Practice.
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NPI assigned on July 17, 2007; this date does not establish years in practice.
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Published CMS data list 2,573 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 645 service units.
- 99214 — Established patient outpatient office visit: 335 service units.
- 99457 — Management using the results of remote vital sign monitoring per calendar month: 327 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 20 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 3,702 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amlodipine Besylate — 253 prescription fills, including refills.
- Atorvastatin Calcium — 238 prescription fills, including refills.
- Rosuvastatin Calcium — 225 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 90 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 75% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: 485. Middle half: 154 to 2,019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 592 in 2020 to 2,573 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
301 S Fair Oaks Ave Ste 405
Pasadena, CA 911052562
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Pasadena Family Medicine Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Northwestern University Feinberg Medical School
1993
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
327 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $181,347 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $140,001 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
8,365 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$378,999 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $1,328.75 across 54 records.
By nature of payment
- Food and Beverage: $1,328.75 across 54 records.
Reporting-company totals (3 largest of 16)
- AstraZeneca Pharmaceuticals LP: $172.51 across 8 records.
- Merck Sharp & Dohme LLC: $169.79 across 3 records.
- Novo Nordisk Inc: $165.50 across 7 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
33 years (graduated 1993)
CMS Doctors and Clinicians data list 1993 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Mattai has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Mattai as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Pasadena and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 75% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: 485. Middle half: 154 to 2,019.
Too few clinicians listed under General Practice in Pasadena have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 75% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $45,658. Middle half: $15,010 to $165,277.
Too few clinicians listed under General Practice in Pasadena have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 75% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $32,130. Middle half: $11,436 to $131,972.
Too few clinicians listed under General Practice in Pasadena have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: 758. Middle half: 125 to 3,707.
Too few clinicians listed under General Practice in Pasadena have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: $48,894. Middle half: $2,044 to $279,308.
Too few clinicians listed under General Practice in Pasadena have Medicare Part D data for 2024 to compare.
13 active clinicians are listed under General Practice with a practice address in Pasadena, CA (1,963 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Pasadena
15.4% of these 13 clinicians have the CMS telehealth indicator.
23.1% of these 13 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 335% from 592 in 2020 to 2,573 in 2024.
- 2020: 592
- 2021: 751
- 2022: 890
- 2023: 1,723
- 2024: 2,573
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Medicare-allowed amount
Medicare-allowed amount increased 329% from $42,226 in 2020 to $181,347 in 2024.
- 2020: $42,226
- 2021: $65,832
- 2022: $79,355
- 2023: $128,036
- 2024: $181,347
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Paid by Medicare
Paid by Medicare increased 390% from $28,575 in 2020 to $140,001 in 2024.
- 2020: $28,575
- 2021: $47,740
- 2022: $58,714
- 2023: $96,729
- 2024: $140,001
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 21% from 3,071 in 2020 to 3,702 in 2024.
- 2020: 3,071
- 2021: 2,913
- 2022: 3,241
- 2023: 3,931
- 2024: 3,702
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30-day fills
30-day fills increased 32% from 6,361 in 2020 to 8,365 in 2024.
- 2020: 6,361
- 2021: 6,253
- 2022: 6,891
- 2023: 8,673
- 2024: 8,365
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Part D drug cost
Part D drug cost increased 102% from $188,005 in 2020 to $378,999 in 2024.
- 2020: $188,005
- 2021: $209,665
- 2022: $246,479
- 2023: $387,598
- 2024: $378,999
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $402.83 in 2021 to $1,328.75 in 2025.
- 2021: $402.83
- 2022: $1,093.84
- 2023: $1,170.30
- 2024: $1,092.95
- 2025: $1,328.75
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 54 records totaling $1,328.75.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
WINREVAIR | General | $124.45 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $34.78 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
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FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE | General | $31.50 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $30.91 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $29.57 |
| Corcept Therapeutics |
Food and Beverage
In-kind items and services
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Korlym | General | $28.86 |
| MAYNE PHARMA COMMERCIAL LLC |
Food and Beverage
In-kind items and services
|
— | General | $28.65 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
Cologuard Collection Kit | General | $28.13 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $27.84 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE | General | $27.45 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $27.43 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
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FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE | General | $27.22 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE | General | $27.08 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $26.98 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $26.34 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $25.51 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
FREESTYLE LIBRE 3 | General | $24.94 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $24.83 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
FREESTYLE LIBRE 3 | General | $24.81 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $24.79 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $24.59 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $24.52 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $23.93 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $23.88 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
CAPVAXIVE | General | $23.68 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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645 | 254 | $83.00 | $75.92 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
335 | 153 | $123.00 | $115.69 |
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99457
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
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327 | 52 | $60.00 | $51.01 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
|
322 | 52 | $80.00 | $63.94 |
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99454
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
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231 | 41 | $65.00 | $52.52 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
135 | 135 | $133.00 | $130.34 |
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G0444
Annual depression screening, 5 to 15 minutes
|
127 | 127 | $30.00 | $20.04 |
|
99439
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
|
99 | 40 | $58.00 | $49.34 |
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99458
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes
|
64 | 32 | $48.00 | $40.22 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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58 | 55 | $35.00 | $14.84 |
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G0008
Administration of influenza virus vaccine
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37 | 37 | $29.73 | $29.14 |
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90662
Influenza vaccine split virus, preservative free
|
33 | 33 | $84.73 | $81.52 |
|
82962
Blood glucose (sugar) test performed by hand-held instrument
|
31 | 15 | $15.00 | $3.21 |
|
99453
Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment
|
27 | 27 | $25.00 | $21.98 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
22 | 22 | $124.00 | $103.79 |
|
81002
Urinalysis, manual test
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19 | 16 | $15.00 | $3.41 |
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G0438
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
|
19 | 19 | $196.00 | $168.85 |
|
99491
Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month
|
16 | 11 | $100.00 | $85.63 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
13 | 13 | $187.00 | $167.44 |
|
G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
|
13 | 13 | $183.00 | $168.94 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 253 | 20,104 | $2,346.72 | 69 |
| Atorvastatin Calcium | Atorvastatin Calcium | 238 | 19,804 | $2,741.40 | 74 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 225 | 18,686 | $4,118.20 | 65 |
| Levothyroxine Sodium | Levothyroxine Sodium | 190 | 16,172 | $2,561.21 | 55 |
| Irbesartan | Irbesartan | 136 | 11,839 | $2,296.54 | 43 |
| Metformin Hcl | Metformin Hcl | 129 | 9,890 | $1,118.98 | 36 |
| Losartan Potassium | Losartan Potassium | 111 | 9,537 | $2,018.25 | 33 |
| Zolpidem Tartrate | Zolpidem Tartrate | 89 | 4,230 | $483.88 | 27 |
| Alendronate Sodium | Alendronate Sodium | 82 | 6,732 | $575.21 | 24 |
| Trazodone Hcl | Trazodone Hcl | 81 | 3,975 | $267.77 | 17 |
| Carvedilol | Carvedilol | 79 | 5,770 | $845.89 | 20 |
| Escitalopram Oxalate | Escitalopram Oxalate | 78 | 4,230 | $1,091.05 | 16 |
| Pantoprazole Sodium | Pantoprazole Sodium | 66 | 3,858 | $762.81 | 15 |
| Gabapentin | Gabapentin | 63 | 3,115 | $1,429.64 | 15 |
| Omeprazole | Omeprazole | 57 | 3,750 | $682.59 | 26 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 55 | 3,531 | $1,381.38 | 12 |
| Lisinopril | Lisinopril | 54 | 4,650 | $389.03 | 16 |
| Alprazolam | Alprazolam | 47 | 1,209 | $130.28 | 21 |
| Fluticasone Propionate | Fluticasone Propionate | 45 | 2,880 | $619.73 | 22 |
| Clonazepam | Clonazepam | 42 | 1,452 | $214.58 | — |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 40 | 1,463 | $1,132.89 | 22 |
| Sertraline Hcl | Sertraline Hcl | 39 | 3,450 | $499.66 | — |
| Metoprolol Succinate | Metoprolol Succinate | 38 | 3,360 | $914.45 | 13 |
| Tramadol Hcl | Tramadol Hcl | 37 | 808 | $107.07 | — |
| Benazepril Hcl | Benazepril Hcl | 37 | 2,850 | $451.06 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - FAMILY PRACTICE
I20050324000256
CA
4284680166
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Pasadena Family Medicine Inc
50 Bellefontaine St, Pasadena, CA 911053132
Phone: 6267921912
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Certified Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated July 17, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other General Practices in Pasadena
- Dr. Thomas Hanson, MD
- Dr. Richard Feinberg, MD
- Dr. Ario Angha, MD
- Dr. James Ho, MD
- Dr. Violeta Navasardian, MD
- Dr. Lisa Uribe, MD
Mailing Address
301 S Fair Oaks Ave Ste 405
Pasadena, CA 911052562
Phone: 6267921912