Individual provider

Alexander Jaksic, MD

Pediatric Anesthesiology Physician Medicare enrolled

Alexander Jaksic, MD is a Pediatric Anesthesiology Physician in Boston, MA, registered under NPI 1003443433.

Getting there

Here is what surrounds this office in Boston, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 771 ft away. There is EV charging 0.33 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 480 ft away, served by Ave Louis Pasteur @ Longwood Ave. A pharmacy sits 0.28 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.20 mi away.

300 LONGWOOD AVE, Boston, MA 02115 Open in Google Maps →

Getting here and what is nearby

Transit Longwood Ave @ Blackfan St 0.00 mi ~1 min
Coffee Starbucks 97 ft ~1 min

283 Longwood Avenue, Boston 02115

Mo-Fr 05:30-20:00; Sa-Su 06:00-19:00

+1 617-277-5202

Website

Directions in Google Maps →

Transit Longwood Ave @ Binney St 462 ft ~2 min
Transit Ave Louis Pasteur @ Longwood Ave 480 ft ~2 min
Hotel Inn at Longwood Medical 567 ft ~3 min
Coffee Starbucks 614 ft ~3 min

364 Brookline Avenue, Boston 02115

Mo-Fr 05:30-20:00

+1 617-277-2350

Website

Directions in Google Maps →

Parking Main Garage 651 ft ~3 min

340 Brookline Avenue

Directions in Google Maps →

Parking Boston Latin School Side Parking Lot 675 ft ~3 min

78 Avenue Louis Pasteur, Boston 02115

Directions in Google Maps →

Parking 771 ft ~3 min

45 Avenue Louis Pasteur

Directions in Google Maps →

Restaurant Dunkin' 778 ft ~3 min

350 Longwood Avenue, Boston 02115

Mo-Fr 06:00-18:00; Sa-Su 06:00-16:00

+1 617 738 4490

Website

Directions in Google Maps →

Pharmacy CVS Pharmacy 850 ft ~4 min

350 Longwood Avenue, Boston 02115

Mo-Fr 06:30-22:00; Sa-Su 08:00-22:00

Website

Directions in Google Maps →

Restaurant Dunkin' 828 ft ~4 min

330 Brookline Avenue, Boston 02215

Mo-Tu 06:00-16:00; We 06:00-14:00; Th-Fr 06:00-16:00; Sa-Su 00:00-24:00

+1 617 667 0690

Website

Directions in Google Maps →

Restaurant McDonald's 831 ft ~4 min

340-350 Longwood Avenue, Boston 02115

Mo-Fr 06:30-22:00; Sa 07:00-20:00; Su 07:30-20:00

+1 617-566-4888

Website

Directions in Google Maps →

Coffee Caffè Nero 0.20 mi ~5 min

360 Longwood Avenue, Boston 02215

Mo-Fr 06:30-18:00

Website

Directions in Google Maps →

Convenience 7-Eleven 0.23 mi ~5 min

722 Huntington Avenue, Boston 02115-5924

+1 617-277-4665

Website

Directions in Google Maps →

Convenience Food Mart 0.28 mi ~6 min
Gas station Shell 0.28 mi ~6 min

1600 Tremont Street

Directions in Google Maps →

Pharmacy Walgreens 0.28 mi ~6 min
Grocery Stop & Shop 0.29 mi ~6 min

1620 Tremont Street, Boston 02120

Mo-Su 07:00-22:00

+1 617-232-3572

Website

Directions in Google Maps →

EV charging ChargePoint 0.33 mi ~7 min
Grocery Star Market 0.47 mi ~10 min

33 Kilmarnock Street, Boston 02215

Mo-Su 06:00-23:00

+1 617-267-4684

Website

Directions in Google Maps →

Convenience Hillside Market 0.50 mi ~10 min
OpenStreetMap via Overpass · ODbL 800 m radius Updated Aug 29, 2026

Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.

Credentials and Medicare

State licence
LicenceStateSpecialty
1022706 MA Pediatric Anesthesiology Physician primary

This provider holds licence 1022706 issued in MA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Pediatric Medicine
PAC ID
4082125349

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Maryland I20250616000061 Practitioner - Pediatric Medicine
Massachusetts I20260623000125 Practitioner - Anesthesiology

Medicare enrolment is recorded as approved under the provider type Practitioner - Pediatric Medicine. There are 2 separate enrolment records across 2 states (MD, MA). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Pediatric Anesthesiology covers

An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy. NUCC Health Care Provider Taxonomy, code 207LP3000X
Allopathic & Osteopathic Physicians ›Anesthesiology ›Pediatric Anesthesiology

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1003443433 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 25, 2020
Last updatedJun 15, 2026
StatusActive
Sole proprietorNo
GenderMale
CredentialMD
Practice address 300 LONGWOOD AVE
Boston, MA 02115
(617) 355-6000
This record was updated on Jun 15, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1003443433 passes the NPI check digit test The final digit 3 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 0 0 3 4 4 3 4 3
Doubled? — ×2 — ×2 — ×2 — ×2 — ×2 — ×2 — ×2
Value 8 0 8 8 0 2 0 0 3 8 4 6 4 6

Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1003443433?
NPI 1003443433 is the National Provider Identifier assigned to Alexander Jaksic, MD in Boston, MA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Pediatric Anesthesiology cover?
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when…
How do I contact Alexander Jaksic, MD?
The phone number on file with NPPES is (617) 355-6000, last updated Jun 15, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Alexander Jaksic, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Where do I park when visiting Alexander Jaksic, MD?
Parking is about 771 ft from the office. The closest transit stop is 480 ft away, on Ave Louis Pasteur @ Longwood Ave. Distances are straight-line estimates from OpenStreetMap, so walking routes may be slightly longer.
Is NPI 1003443433 a valid number?
Yes. 1003443433 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.