Dr. Daniel M Birk , MD
Neurological Surgery โข Commack, NY
353 Veterans Memorial Hwy
Commack, NY 117254200
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. Daniel Birk is listed in NPPES under Neurological Surgery.
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NPI assigned on April 21, 2010; this date does not establish years in practice.
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Published CMS data list 203 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99212 โ Established patient outpatient office visit: 77 service units.
- 99213 โ Established patient outpatient office visit: 50 service units.
- 99203 โ New patient outpatient office visit: 43 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 5 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 92 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Oxycodone Hcl โ 32 prescription fills, including refills.
- Cyclobenzaprine Hcl โ 18 prescription fills, including refills.
- Gabapentin โ 17 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Neurological Surgery in New York (2024, 292 clinicians with data). Median for this group: 199. Middle half: 90 to 383.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 114 in 2020 to 203 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
353 Veterans Memorial Hwy
Commack, NY 117254200
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Port Jefferson Station, NY. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Nitin Mariwalla Md Pllc. 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
Columbia University College Of Physicians And Surgeons
2010
What Public CMS Data Show
Neurological Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
110 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 โ by Provider, 2024.
Medicare-allowed amount
About $27,507 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 โ by Provider and Service, 2024.
Paid by Medicare
About $20,623 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 โ by Provider and Service, 2024.
30-day fills
92 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
$807 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $835.32 across 26 records.
By nature of payment
- Food and Beverage: $835.32 across 26 records.
Reporting-company totals (3 largest of 6)
- DePuy Synthes Sales Inc.: $297.27 across 17 records.
- Globus Medical, Inc.: $238.94 across 4 records.
- Providence Medical Technology, Inc.: $222.49 across 1 record.
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
16 years (graduated 2010)
CMS Doctors and Clinicians data list 2010 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
2010
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Birk 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. Birk 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 Commack and New York
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Neurological Surgery in New York (2024, 292 clinicians with data). Median for this group: 199. Middle half: 90 to 383.
Too few clinicians listed under Neurological Surgery in Commack have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
Close to the middle for clinicians listed under Neurological Surgery in New York (2024, 292 clinicians with data). Median for this group: $36,304. Middle half: $13,057 to $83,493.
Too few clinicians listed under Neurological Surgery in Commack have Medicare Part B data for 2024 to compare.
Paid by Medicare
Close to the middle for clinicians listed under Neurological Surgery in New York (2024, 292 clinicians with data). Median for this group: $28,101. Middle half: $9,813 to $65,304.
Too few clinicians listed under Neurological Surgery in Commack have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Neurological Surgery in New York (2024, 96 clinicians with data). Median for this group: 48. Middle half: 17 to 106.
Too few clinicians listed under Neurological Surgery in Commack have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Neurological Surgery in New York (2024, 96 clinicians with data). Median for this group: $416. Middle half: $159 to $2,859.
Too few clinicians listed under Neurological Surgery in Commack have Medicare Part D data for 2024 to compare.
1 active clinicians are listed under Neurological Surgery with a practice address in Commack, NY (530 in New York).
Addresses are self-reported to NPPES and may be out of date.
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 78% from 114 in 2020 to 203 in 2024.
- 2020: 114
- 2021: 265
- 2022: 293
- 2023: 287
- 2024: 203
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $26,873 in 2020 and $27,507 in 2024.
- 2020: $26,873
- 2021: $57,497
- 2022: $55,679
- 2023: $46,048
- 2024: $27,507
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Paid by Medicare
Paid by Medicare varied from year to year: $21,561 in 2020 and $20,623 in 2024.
- 2020: $21,561
- 2021: $46,111
- 2022: $44,456
- 2023: $36,090
- 2024: $20,623
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 283% from 24 in 2022 to 92 in 2024.
- 2022: 24
- 2023: 84
- 2024: 92
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30-day fills
30-day fills increased 283% from 24 in 2022 to 92 in 2024.
- 2022: 24
- 2023: 84
- 2024: 92
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Part D drug cost
Part D drug cost went from $224 in 2022 to $807 in 2024.
- 2022: $224
- 2023: $1,018
- 2024: $807
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 18% from $1,024.02 in 2021 to $835.32 in 2025.
- 2021: $1,024.02
- 2022: $5,052.32
- 2023: $624.29
- 2024: $964.53
- 2025: $835.32
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 ยท 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 โ December 31, 2025): 26 records totaling $835.32.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Providence Medical Technology, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $222.49 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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XLIF | General | $89.42 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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SIMPLIFY CERVICAL ARTIFICIAL DISC | General | $59.20 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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XLIF | General | $57.00 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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Expedium VERSE | General | $40.93 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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Spine & Trauma 3D Navigation | General | $39.59 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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FIBERGRAFT BG MORSELS | General | $38.89 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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SIMPLIFY CERVICAL ARTIFICIAL DISC | General | $33.32 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $22.87 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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ARCH | General | $22.76 |
| SPINEOLOGY INC. |
Food and Beverage
Cash or cash equivalent
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OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM | General | $19.67 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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Intracept | General | $17.39 |
| SPINEOLOGY INC. |
Food and Beverage
Cash or cash equivalent
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OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM | General | $16.69 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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Expedium VERSE | General | $16.67 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
CONFIDENCE SPINAL CEMENT SYSTEM | General | $15.39 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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SYMPHONY | General | $14.26 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
Expedium VERSE | General | $13.72 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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Expedium VERSE | General | $13.52 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
FIBERGRAFT BG MORSELS | General | $13.29 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
Spine & Trauma 3D Navigation | General | $12.96 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
SKYLINE | General | $12.65 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
CONFIDENCE SPINAL CEMENT SYSTEM | General | $12.29 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $10.03 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
SKYLINE | General | $7.38 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
SKYLINE | General | $7.14 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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 โ by Provider and Service data, 2017โ2024; 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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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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77 | 55 | $51.92 | $51.09 |
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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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50 | 39 | $86.04 | $84.85 |
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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
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43 | 43 | $129.06 | $126.98 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
18 | 18 | $194.02 | $189.51 |
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63047
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment
|
15 | 15 | $1456.40 | $697.27 |
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 |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 32 | 960 | $407.99 | 17 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 18 | 540 | $82.23 | โ |
| Gabapentin | Gabapentin | 17 | 510 | $114.84 | โ |
| Methocarbamol | Methocarbamol | 14 | 420 | $141.78 | โ |
| Methylprednisolone | Methylprednisolone | 11 | 66 | $60.06 | 11 |
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
Self-certified to NPPES: 2020-02-02NUCC Taxonomy Code: 207T00000X
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEUROSURGERY
I20170512000891
NY
2163732256
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
Nitin Mariwalla Md Pllc
1175 Montauk Hwy 3, West Islip, NY 117954939
Nitin Mariwalla Md Pllc
1175 Montauk Hwy, West Islip, NY 117954939
Phone: 6315009400
Nitin Mariwalla Md Pllc
50 Route 25a, Smithtown, NY 117871348
Phone: 6315009400
Secondary Practice Locations
1500 Route 112 Ste 8a
Port Jefferson Station, NY 117768053
Phone: 6319838400
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
RPAC
Dentist
Doctor of Dental Surgery
Dentist
Doctor of Dental Surgery
Physician Assistant
RPAC
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 353 VETERANS MEMORIAL HWY, COMMACK, NY 117254200 (Tel: 6319838400)
Registered at 1991 MARCUS AVE STE 108, NEW HYDE PARK, NY 110422062 (Tel: 5164422250)
NPI status registered as active in NPPES database
Registered at NEW YORK SPINE AND BRAIN SURGERY, HSC T12 RM 080, STONY BROOK, NY 117940001 (Tel: 6314441210)
Registered at NEW YORK SPINE AND BRAIN SURGERY, HSC T12 RM 080, STONY BROOK, NY 117948122 (Tel: 6314441210)
Recorded as DANIEL BIRK, MD
Neurological Surgery (license number reported to NPPES: NY 287264)
Registered at NEW YORK SPINE AND BRAIN SURGERY, HSC T12 RM 080, STONY BROOK, NY 117948122 (Tel: 6314441210)
Registered at 520 S STATE ST, 1505, CHICAGO, IL 606051609 (Tel: 2123006260)
Neurological Surgery (license number reported to NPPES: NY 287264)
NPI status registered as active in NPPES database
Registered at 1740 W TAYLOR ST, CHICAGO, IL 606127232 (Tel: 8666002273)
Registered at 154 HAVEN AVE # 702, NEW YORK, NY 100321180 (Tel: 2123006260)
Recorded as DANIEL BIRK, MD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
1991 Marcus Ave Ste 108
New Hyde Park, NY 110422062
Phone: 5164422250